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使用QT实现点餐ui界面_qt点餐系统

作者：小小林熬夜学编程 | 2024-02-14 13:36:54

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qt点餐系统

通过在QT中对界面进行设计，使界面实现

1、登录/注册功能

2、点餐功能(显示图片、库存、点菜数量)

3、购物车界面（对已点的菜品进行总结，点了哪些菜品就显示哪些菜品的点菜数量）

  1. //主界面（登录界面）
  2. #include "mainwindow.h"
  3. #include "ui_mainwindow.h"
  4. #include "zuce.h"
  5. #include "diang.h"
  6. diang* food;
  7. MainWindow::MainWindow(QWidget *parent)
  8.     : QMainWindow(parent)
  9.     , ui(new Ui::MainWindow)
  10. {
  11.     ui->setupUi(this);
  12. }
  13.  
  14. MainWindow::~MainWindow()
  15. {
  16.     delete ui;
  17. }
  18. //自定义槽
  19. void MainWindow::jian(QString data)
  20. {
  21.     //存储账号和密码
  22.     list<<data;
  23.  
  24. }
  25.  
  26. //登录
  27. void MainWindow::on_pushButton_clicked()
  28. {
  29.     int info=0;
  30.     static int num=3;
  31.     QString data=ui->ledit1->text()+"#"+ui->ledit2->text();
  32.     for(int i=0;i<list.size();i++)
  33.     {
  34.         if(data==list[i])
  35.         {
  36.             qDebug()<<"登录成功";
  37.             QMessageBox::information(this,"", "登录成功");
  38.             info=1;
  39.             break;
  40.         }
  41.     }
  42.     if(info==0)
  43.     {
  44.         //清空输入框
  45.         ui->ledit1->clear();
  46.         ui->ledit2->clear();
  47.         qDebug()<<"登录失败";
  48.         num--;
  49.         QString tex="账号密码错误,你还剩"+QString::number(num)+"次机会";
  50.         //qDebug()<<"你还剩"<<num<<"次机会";
  51.         QMessageBox::information(this,"",tex);
  52.     }
  53.     //登录成功后的界面
  54.     if(info==1)
  55.     {
  56.         //生成点餐界面
  57.         food=new diang(nullptr);
  58.         this->hide();
  59.         food->show();
  60.  
  61.     }
  62.     //次数用完就关闭
  63.     if(num==0)
  64.     this->close();
  65.  
  66. }
  67. //注册
  68. void MainWindow::on_pushButton_2_clicked()
  69. {
  70.     zuce* ZC=new zuce(this);
  71.     this->hide();
  72.     ZC->show();
  73. }
  1. //注册界面
  2. #include "zuce.h"
  3. #include "ui_zuce.h"
  4. #include "mainwindow.h"
  5. #include<QDebug>
  6. MainWindow* fu;
  7. zuce::zuce(QWidget *parent) :
  8.     QMainWindow(parent),
  9.     ui(new Ui::zuce)
  10. {
  11.     ui->setupUi(this);
  12.     //找到父界面
  13.     QWidget* w=parentWidget();
  14.     //转化类型
  15.     fu = dynamic_cast<MainWindow*>(w);
  16.     //连接信号和槽函数
  17.     connect(this,&zuce::che,fu,&MainWindow::jian);
  18. }
  19.  
  20. zuce::~zuce()
  21. {
  22.     delete ui;
  23. }
  24.  
  25. void zuce::on_pushButton_2_clicked()
  26. {
  27.     this->hide();
  28.     fu->show();
  29. }
  30.  
  31. void zuce::on_pushButton_clicked()
  32. {
  33.     QString word=ui->zuce1->text();//账号
  34.     QString pass=ui->zuce2->text();//密码
  35.     ui->zuce1->clear();
  36.     ui->zuce2->clear();
  37.     QString data=word+'#'+pass;
  38.     lis<<data;
  39.     for(int i=0;i<lis.size();i++)
  40.     {
  41.         qDebug()<<lis[i];
  42.     }
  43.     //发送信号
  44.     emit che(data);
  45. }
  1. //点餐界面
  2. #include "diang.h"
  3. #include "ui_diang.h"
  4. #include "mainwindow.h"
  5. #include "cede.h"
  6. cede* cai;
  7. //菜名
  8. QString ming[12]={"麻辣窝窝头","黄金凤尾虾","糖果炒肉","福袋","好看的福袋","枫达","一人嘉禾","鸡你太莓","仰望星空","炸坤排","ikun工作餐","狱卒"};
  9. //数量
  10. int sum[12]={};
  11. //价格
  12. int much[12]={15,30,25,30,50,10,2,15,198,20,35,998};
  13. //原库存
  14. int yuan[12]={10,10,10,10,10,10,100,10,10,10,10,10};
  15. //库存
  16. int ku[12]={10,10,10,10,10,10,100,10,10,10,10,10};
  17. //总金额
  18. int erdu=0;
  19. diang::diang(QWidget *parent) :
  20.     QWidget(parent),
  21.     ui(new Ui::diang)
  22. {
  23.     ui->setupUi(this);
  24.     //库存
  25.     ui->lab1_4->setText(QString::number(ku[0]));
  26.     ui->lab2_4->setText(QString::number(ku[1]));
  27.     ui->lab3_4->setText(QString::number(ku[2]));
  28.     ui->lab4_4->setText(QString::number(ku[3]));
  29.     ui->lab5_4->setText(QString::number(ku[4]));
  30.     ui->lab6_4->setText(QString::number(ku[5]));
  31.     ui->lab7_4->setText(QString::number(ku[6]));
  32.     ui->lab8_4->setText(QString::number(ku[7]));
  33.     ui->lab9_4->setText(QString::number(ku[8]));
  34.     ui->lab10_4->setText(QString::number(ku[9]));
  35.     ui->lab11_4->setText(QString::number(ku[10]));
  36.     ui->lab12_4->setText(QString::number(ku[11]));
  37.     //数量
  38.     ui->lab1_5->setText(QString::number(sum[0]));
  39.     ui->lab2_5->setText(QString::number(sum[1]));
  40.     ui->lab3_5->setText(QString::number(sum[2]));
  41.     ui->lab4_5->setText(QString::number(sum[3]));
  42.     ui->lab5_5->setText(QString::number(sum[4]));
  43.     ui->lab6_5->setText(QString::number(sum[5]));
  44.     ui->lab7_5->setText(QString::number(sum[6]));
  45.     ui->lab8_5->setText(QString::number(sum[7]));
  46.     ui->lab9_5->setText(QString::number(sum[8]));
  47.     ui->lab10_5->setText(QString::number(sum[9]));
  48.     ui->lab11_5->setText(QString::number(sum[10]));
  49.     ui->lab12_5->setText(QString::number(sum[11]));
  50.     cai=new cede(this);
  51.     cai->hide();
  52.     //连接信号和槽
  53.     connect(this,&diang::xinjian,cai,&cede::chuan);
  54. }
  55.  
  56. diang::~diang()
  57. {
  58.     delete ui;
  59. }
  60.  
  61. void diang::on_pushButton_2_clicked()
  62. {
  63.      QMessageBox::information(this,"","坤坤正在火热为你制作");
  64. }
  65. //1
  66.  
  67. void diang::on_pushButton_3_clicked()
  68. {
  69.     if(sum[0]==0)
  70.     {
  71.         QMessageBox::information(this,"","已经是最少的了");
  72.         return;
  73.     }
  74.     else
  75.     {
  76.         sum[0]-=1;
  77.         ku[0]+=1;
  78.         erdu-=much[0];
  79.         ui->lineEdit->setText(QString::number(erdu));
  80.         ui->lab1_5->setText(QString::number(sum[0]));
  81.         ui->lab1_4->setText(QString::number(ku[0]));
  82.     }
  83. }
  84.  
  85. void diang::on_pushButton_4_clicked()
  86. {
  87.     if(sum[0]==yuan[0])
  88.     {
  89.  
  90.         QMessageBox::information(this,"","已经是所有库存了");
  91.         return;
  92.     }
  93.     else
  94.     {
  95.         sum[0]+=1;
  96.         ku[0]-=1;
  97.         erdu+=much[0];
  98.         ui->lineEdit->setText(QString::number(erdu));
  99.         ui->lab1_5->setText(QString::number(sum[0]));
  100.         ui->lab1_4->setText(QString::number(ku[0]));
  101.     }
  102. }
  103. //2
  104.  
  105. void diang::on_pushButton_5_clicked()
  106. {
  107.     if(sum[1]==0)
  108.     {
  109.         QMessageBox::information(this,"","已经是最少的了");
  110.         return;
  111.     }
  112.     else
  113.     {
  114.         sum[1]-=1;
  115.         ku[1]+=1;
  116.         erdu-=much[1];
  117.         ui->lineEdit->setText(QString::number(erdu));
  118.         ui->lab2_5->setText(QString::number(sum[1]));
  119.         ui->lab2_4->setText(QString::number(ku[1]));
  120.     }
  121. }
  122.  
  123. void diang::on_pushButton_6_clicked()
  124. {
  125.     if(sum[1]==yuan[1])
  126.     {
  127.  
  128.         QMessageBox::information(this,"","已经是所有库存了");
  129.         return;
  130.     }
  131.     else
  132.     {
  133.         sum[1]+=1;
  134.         ku[1]-=1;
  135.         erdu+=much[1];
  136.         ui->lineEdit->setText(QString::number(erdu));
  137.         ui->lab2_5->setText(QString::number(sum[1]));
  138.         ui->lab2_4->setText(QString::number(ku[1]));
  139.     }
  140. }
  141. //3
  142.  
  143. void diang::on_pushButton_11_clicked()
  144. {
  145.     if(sum[2]==0)
  146.     {
  147.         QMessageBox::information(this,"","已经是最少的了");
  148.         return;
  149.     }
  150.     else
  151.     {
  152.         sum[2]-=1;
  153.         ku[2]+=1;
  154.         erdu-=much[2];
  155.         ui->lineEdit->setText(QString::number(erdu));
  156.         ui->lab3_5->setText(QString::number(sum[2]));
  157.         ui->lab3_4->setText(QString::number(ku[2]));
  158.     }
  159. }
  160.  
  161. void diang::on_pushButton_21_clicked()
  162. {
  163.     if(sum[2]==yuan[2])
  164.     {
  165.         QMessageBox::information(this,"","已经是所有库存了");
  166.         return;
  167.     }
  168.     else
  169.     {
  170.         sum[2]+=1;
  171.         ku[2]-=1;
  172.         erdu+=much[2];
  173.         ui->lineEdit->setText(QString::number(erdu));
  174.         ui->lab3_5->setText(QString::number(sum[2]));
  175.         ui->lab3_4->setText(QString::number(ku[2]));
  176.     }
  177. }
  178. //4
  179. void diang::on_pushButton_12_clicked()
  180. {
  181.     if(sum[3]==0)
  182.     {
  183.         QMessageBox::information(this,"","已经是最少的了");
  184.         return;
  185.     }
  186.     else
  187.     {
  188.         sum[3]-=1;
  189.         ku[3]+=1;
  190.         erdu-=much[3];
  191.         ui->lineEdit->setText(QString::number(erdu));
  192.         ui->lab4_5->setText(QString::number(sum[3]));
  193.         ui->lab4_4->setText(QString::number(ku[3]));
  194.     }
  195. }
  196.  
  197. void diang::on_pushButton_22_clicked()
  198. {
  199.     if(sum[3]==yuan[3])
  200.     {
  201.  
  202.         QMessageBox::information(this,"","已经是所有库存了");
  203.         return;
  204.     }
  205.     else
  206.     {
  207.         sum[3]+=1;
  208.         ku[3]-=1;
  209.         erdu+=much[3];
  210.         ui->lineEdit->setText(QString::number(erdu));
  211.         ui->lab4_5->setText(QString::number(sum[3]));
  212.         ui->lab4_4->setText(QString::number(ku[3]));
  213.     }
  214. }
  215. //5
  216. void diang::on_pushButton_13_clicked()
  217. {
  218.     if(sum[4]==0)
  219.     {
  220.         QMessageBox::information(this,"","已经是最少的了");
  221.         return;
  222.     }
  223.     else
  224.     {
  225.         sum[4]-=1;
  226.         ku[4]+=1;
  227.         erdu-=much[4];
  228.         ui->lineEdit->setText(QString::number(erdu));
  229.         ui->lab5_5->setText(QString::number(sum[4]));
  230.         ui->lab5_4->setText(QString::number(ku[4]));
  231.     }
  232. }
  233.  
  234. void diang::on_pushButton_23_clicked()
  235. {
  236.     if(sum[4]==yuan[4])
  237.     {
  238.  
  239.         QMessageBox::information(this,"","已经是所有库存了");
  240.         return;
  241.     }
  242.     else
  243.     {
  244.         sum[4]+=1;
  245.         ku[4]-=1;
  246.         erdu+=much[4];
  247.         ui->lineEdit->setText(QString::number(erdu));
  248.         ui->lab5_5->setText(QString::number(sum[4]));
  249.         ui->lab5_4->setText(QString::number(ku[4]));
  250.     }
  251. }
  252. //6
  253.  
  254. void diang::on_pushButton_14_clicked()
  255. {
  256.     if(sum[5]==0)
  257.     {
  258.         QMessageBox::information(this,"","已经是最少的了");
  259.         return;
  260.     }
  261.     else
  262.     {
  263.         sum[5]-=1;
  264.         ku[5]+=1;
  265.         erdu-=much[5];
  266.         ui->lineEdit->setText(QString::number(erdu));
  267.         ui->lab6_5->setText(QString::number(sum[5]));
  268.         ui->lab6_4->setText(QString::number(ku[5]));
  269.     }
  270. }
  271.  
  272. void diang::on_pushButton_24_clicked()
  273. {
  274.     if(sum[5]==yuan[5])
  275.     {
  276.  
  277.         QMessageBox::information(this,"","已经是所有库存了");
  278.         return;
  279.     }
  280.     else
  281.     {
  282.         sum[5]+=1;
  283.         ku[5]-=1;
  284.         erdu+=much[5];
  285.         ui->lineEdit->setText(QString::number(erdu));
  286.         ui->lab6_5->setText(QString::number(sum[5]));
  287.         ui->lab6_4->setText(QString::number(ku[5]));
  288.     }
  289. }
  290. //7
  291.  
  292.  
  293. void diang::on_pushButton_15_clicked()
  294. {
  295.     if(sum[6]==0)
  296.     {
  297.         QMessageBox::information(this,"","已经是最少的了");
  298.         return;
  299.     }
  300.     else
  301.     {
  302.         sum[6]-=1;
  303.         ku[6]+=1;
  304.         erdu-=much[6];
  305.         ui->lineEdit->setText(QString::number(erdu));
  306.         ui->lab7_5->setText(QString::number(sum[6]));
  307.         ui->lab7_4->setText(QString::number(ku[6]));
  308.     }
  309. }
  310.  
  311. void diang::on_pushButton_25_clicked()
  312. {
  313.     if(sum[6]==yuan[6])
  314.     {
  315.  
  316.         QMessageBox::information(this,"","已经是所有库存了");
  317.         return;
  318.     }
  319.     else
  320.     {
  321.         sum[6]+=1;
  322.         ku[6]-=1;
  323.         erdu+=much[6];
  324.         ui->lineEdit->setText(QString::number(erdu));
  325.         ui->lab7_5->setText(QString::number(sum[6]));
  326.         ui->lab7_4->setText(QString::number(ku[6]));
  327.     }
  328. }
  329. //8
  330. void diang::on_pushButton_16_clicked()
  331. {
  332.     if(sum[7]==0)
  333.     {
  334.         QMessageBox::information(this,"","已经是最少的了");
  335.         return;
  336.     }
  337.     else
  338.     {
  339.         sum[7]-=1;
  340.         ku[7]+=1;
  341.         erdu-=much[7];
  342.         ui->lineEdit->setText(QString::number(erdu));
  343.         ui->lab8_5->setText(QString::number(sum[7]));
  344.         ui->lab8_4->setText(QString::number(ku[7]));
  345.     }
  346. }
  347.  
  348. void diang::on_pushButton_26_clicked()
  349. {
  350.     if(sum[7]==yuan[7])
  351.     {
  352.  
  353.         QMessageBox::information(this,"","已经是所有库存了");
  354.         return;
  355.     }
  356.     else
  357.     {
  358.         sum[7]+=1;
  359.         ku[7]-=1;
  360.         erdu+=much[7];
  361.         ui->lineEdit->setText(QString::number(erdu));
  362.         ui->lab8_5->setText(QString::number(sum[7]));
  363.         ui->lab8_4->setText(QString::number(ku[7]));
  364.     }
  365. }
  366. //9
  367.  
  368. void diang::on_pushButton_17_clicked()
  369. {
  370.     if(sum[8]==0)
  371.     {
  372.         QMessageBox::information(this,"","已经是最少的了");
  373.         return;
  374.     }
  375.     else
  376.     {
  377.         sum[8]-=1;
  378.         ku[8]+=1;
  379.         erdu-=much[8];
  380.         ui->lineEdit->setText(QString::number(erdu));
  381.         ui->lab9_5->setText(QString::number(sum[8]));
  382.         ui->lab9_4->setText(QString::number(ku[8]));
  383.     }
  384. }
  385.  
  386. void diang::on_pushButton_27_clicked()
  387. {
  388.     if(sum[8]==yuan[8])
  389.     {
  390.  
  391.         QMessageBox::information(this,"","已经是所有库存了");
  392.         return;
  393.     }
  394.     else
  395.     {
  396.         sum[8]+=1;
  397.         ku[8]-=1;
  398.         erdu+=much[8];
  399.         ui->lineEdit->setText(QString::number(erdu));
  400.         ui->lab9_5->setText(QString::number(sum[8]));
  401.         ui->lab9_4->setText(QString::number(ku[8]));
  402.     }
  403. }
  404. //10
  405. void diang::on_pushButton_18_clicked()
  406. {
  407.     if(sum[9]==0)
  408.     {
  409.         QMessageBox::information(this,"","已经是最少的了");
  410.         return;
  411.     }
  412.     else
  413.     {
  414.         sum[9]-=1;
  415.         ku[9]+=1;
  416.         erdu-=much[9];
  417.         ui->lineEdit->setText(QString::number(erdu));
  418.         ui->lab10_5->setText(QString::number(sum[9]));
  419.         ui->lab10_4->setText(QString::number(ku[9]));
  420.     }
  421. }
  422.  
  423. void diang::on_pushButton_28_clicked()
  424. {
  425.     if(sum[9]==yuan[9])
  426.     {
  427.  
  428.         QMessageBox::information(this,"","已经是所有库存了");
  429.         return;
  430.     }
  431.     else
  432.     {
  433.         sum[9]+=1;
  434.         ku[9]-=1;
  435.         erdu+=much[9];
  436.         ui->lineEdit->setText(QString::number(erdu));
  437.         ui->lab10_5->setText(QString::number(sum[9]));
  438.         ui->lab10_4->setText(QString::number(ku[9]));
  439.     }
  440. }
  441. //11
  442.  
  443.  
  444. void diang::on_pushButton_19_clicked()
  445. {
  446.     if(sum[10]==0)
  447.     {
  448.         QMessageBox::information(this,"","已经是最少的了");
  449.         return;
  450.     }
  451.     else
  452.     {
  453.         sum[10]-=1;
  454.         ku[10]+=1;
  455.         erdu-=much[10];
  456.         ui->lineEdit->setText(QString::number(erdu));
  457.         ui->lab11_5->setText(QString::number(sum[10]));
  458.         ui->lab11_4->setText(QString::number(ku[10]));
  459.     }
  460. }
  461.  
  462. void diang::on_pushButton_29_clicked()
  463. {
  464.     if(sum[10]==yuan[10])
  465.     {
  466.  
  467.         QMessageBox::information(this,"","已经是所有库存了");
  468.         return;
  469.     }
  470.     else
  471.     {
  472.         sum[10]+=1;
  473.         ku[10]-=1;
  474.         erdu+=much[10];
  475.         ui->lineEdit->setText(QString::number(erdu));
  476.         ui->lab11_5->setText(QString::number(sum[10]));
  477.         ui->lab11_4->setText(QString::number(ku[10]));
  478.     }
  479. }
  480. //12
  481. void diang::on_pushButton_20_clicked()
  482. {
  483.     if(sum[11]==0)
  484.     {
  485.         QMessageBox::information(this,"","已经是最少的了");
  486.         return;
  487.     }
  488.     else
  489.     {
  490.         sum[11]-=1;
  491.         ku[11]+=1;
  492.         erdu-=much[11];
  493.         ui->lineEdit->setText(QString::number(erdu));
  494.         ui->lab12_5->setText(QString::number(sum[11]));
  495.         ui->lab12_4->setText(QString::number(ku[11]));
  496.     }
  497. }
  498.  
  499. void diang::on_pushButton_30_clicked()
  500. {
  501.     if(sum[11]==yuan[11])
  502.     {
  503.  
  504.         QMessageBox::information(this,"","已经是所有库存了");
  505.         return;
  506.     }
  507.     else
  508.     {
  509.         sum[11]+=1;
  510.         ku[11]-=1;
  511.         erdu+=much[11];
  512.         ui->lineEdit->setText(QString::number(erdu));
  513.         ui->lab12_5->setText(QString::number(sum[11]));
  514.         ui->lab12_4->setText(QString::number(ku[11]));
  515.     }
  516. }
  517. //购物车
  518. void diang::on_pushButton_clicked()
  519. {
  520.     for(int i=0;i<12;i++)
  521.     {
  522.         if(sum[i]!=0)
  523.         {
  524.             QString date=ming[i];
  525.             int date2=sum[i];
  526.             emit xinjian(date,date2,i);
  527.  
  528.         }
  529.     }
  530.     this->hide();
  531.     cai->show();
  532.  
  533. }
  534. void diang::jajian(int datas)
  535. {
  536.     if(sum[datas]==0)
  537.     {
  538.         QMessageBox::information(this,"","已经是最少的了");
  539.  
  540.     }
  541.  
  542.         qDebug()<<"datas"<<datas;
  543.         sum[datas]-=1;
  544.         ku[datas]+=1;
  545.         erdu-=much[datas];
  546.         switch(datas)
  547.         {
  548.         case 0:
  549.             ui->lineEdit->setText(QString::number(erdu));
  550.             ui->lab1_5->setText(QString::number(sum[datas]));
  551.             ui->lab1_4->setText(QString::number(ku[datas]));
  552.             break;
  553.         case 1:
  554.             ui->lineEdit->setText(QString::number(erdu));
  555.             ui->lab2_5->setText(QString::number(sum[datas]));
  556.             ui->lab2_4->setText(QString::number(ku[datas]));
  557.             break;
  558.         case 2:
  559.             ui->lineEdit->setText(QString::number(erdu));
  560.             ui->lab3_5->setText(QString::number(sum[datas]));
  561.             ui->lab3_4->setText(QString::number(ku[datas]));
  562.             break;
  563.         case 3:
  564.             ui->lineEdit->setText(QString::number(erdu));
  565.             ui->lab4_5->setText(QString::number(sum[datas]));
  566.             ui->lab4_4->setText(QString::number(ku[datas]));
  567.             break;
  568.         case 4:
  569.             ui->lineEdit->setText(QString::number(erdu));
  570.             ui->lab5_5->setText(QString::number(sum[datas]));
  571.             ui->lab5_4->setText(QString::number(ku[datas]));
  572.             break;
  573.         case 5:
  574.             ui->lineEdit->setText(QString::number(erdu));
  575.             ui->lab6_5->setText(QString::number(sum[datas]));
  576.             ui->lab6_4->setText(QString::number(ku[datas]));
  577.             break;
  578.         case 6:
  579.             ui->lineEdit->setText(QString::number(erdu));
  580.             ui->lab7_5->setText(QString::number(sum[datas]));
  581.             ui->lab7_4->setText(QString::number(ku[datas]));
  582.             break;
  583.         case 7:
  584.             ui->lineEdit->setText(QString::number(erdu));
  585.             ui->lab8_5->setText(QString::number(sum[datas]));
  586.             ui->lab8_4->setText(QString::number(ku[datas]));
  587.             break;
  588.         case 8:
  589.             ui->lineEdit->setText(QString::number(erdu));
  590.             ui->lab9_5->setText(QString::number(sum[datas]));
  591.             ui->lab9_4->setText(QString::number(ku[datas]));
  592.             break;
  593.         case 9:
  594.             ui->lineEdit->setText(QString::number(erdu));
  595.             ui->lab10_5->setText(QString::number(sum[datas]));
  596.             ui->lab10_4->setText(QString::number(ku[datas]));
  597.             break;
  598.         case 10:
  599.             ui->lineEdit->setText(QString::number(erdu));
  600.             ui->lab11_5->setText(QString::number(sum[datas]));
  601.             ui->lab11_4->setText(QString::number(ku[datas]));
  602.             break;
  603.         case 11:
  604.             ui->lineEdit->setText(QString::number(erdu));
  605.             ui->lab12_5->setText(QString::number(sum[datas]));
  606.             ui->lab12_4->setText(QString::number(ku[datas]));
  607.             break;
  608.  
  609.         }
  610.  
  611.  
  612. }
  613. //加
  614. void diang::jiajian(int dates)
  615. {
  616.     if(sum[dates]==yuan[dates])
  617.     {
  618.  
  619.         QMessageBox::information(this,"","已经是所有库存了");
  620.  
  621.     }
  622.  
  623.         sum[dates]+=1;
  624.         ku[dates]-=1;
  625.         erdu+=much[dates];
  626.         switch(dates)
  627.         {
  628.         case 0:
  629.             ui->lineEdit->setText(QString::number(erdu));
  630.             ui->lab1_5->setText(QString::number(sum[dates]));
  631.             ui->lab1_4->setText(QString::number(ku[dates]));
  632.             break;
  633.         case 1:
  634.             ui->lineEdit->setText(QString::number(erdu));
  635.             ui->lab2_5->setText(QString::number(sum[dates]));
  636.             ui->lab2_4->setText(QString::number(ku[dates]));
  637.             break;
  638.         case 2:
  639.             ui->lineEdit->setText(QString::number(erdu));
  640.             ui->lab3_5->setText(QString::number(sum[dates]));
  641.             ui->lab3_4->setText(QString::number(ku[dates]));
  642.             break;
  643.         case 3:
  644.             ui->lineEdit->setText(QString::number(erdu));
  645.             ui->lab4_5->setText(QString::number(sum[dates]));
  646.             ui->lab4_4->setText(QString::number(ku[dates]));
  647.             break;
  648.         case 4:
  649.             ui->lineEdit->setText(QString::number(erdu));
  650.             ui->lab5_5->setText(QString::number(sum[dates]));
  651.             ui->lab5_4->setText(QString::number(ku[dates]));
  652.             break;
  653.         case 5:
  654.             ui->lineEdit->setText(QString::number(erdu));
  655.             ui->lab6_5->setText(QString::number(sum[dates]));
  656.             ui->lab6_4->setText(QString::number(ku[dates]));
  657.             break;
  658.         case 6:
  659.             ui->lineEdit->setText(QString::number(erdu));
  660.             ui->lab7_5->setText(QString::number(sum[dates]));
  661.             ui->lab7_4->setText(QString::number(ku[dates]));
  662.             break;
  663.         case 7:
  664.             ui->lineEdit->setText(QString::number(erdu));
  665.             ui->lab8_5->setText(QString::number(sum[dates]));
  666.             ui->lab8_4->setText(QString::number(ku[dates]));
  667.             break;
  668.         case 8:
  669.             ui->lineEdit->setText(QString::number(erdu));
  670.             ui->lab9_5->setText(QString::number(sum[dates]));
  671.             ui->lab9_4->setText(QString::number(ku[dates]));
  672.             break;
  673.         case 9:
  674.             ui->lineEdit->setText(QString::number(erdu));
  675.             ui->lab10_5->setText(QString::number(sum[dates]));
  676.             ui->lab10_4->setText(QString::number(ku[dates]));
  677.             break;
  678.         case 10:
  679.             ui->lineEdit->setText(QString::number(erdu));
  680.             ui->lab11_5->setText(QString::number(sum[dates]));
  681.             ui->lab11_4->setText(QString::number(ku[dates]));
  682.             break;
  683.         case 11:
  684.             ui->lineEdit->setText(QString::number(erdu));
  685.             ui->lab12_5->setText(QString::number(sum[dates]));
  686.             ui->lab12_4->setText(QString::number(ku[dates]));
  687.             break;
  688.         }
  689.  
  690. }
  1. //购物车界面
  2. #include "cede.h"
  3. #include "ui_cede.h"
  4. #include "diang.h"
  5. diang* qing;
  6. //按钮名
  7. QString put[12]={"put1","put2","put3","put4","put5","put6","put7","put8","put9","put10","put11","put12"};
  8. //label名
  9. QString lae[12]={"labt1","labt2","labt3","labt4","labt5","labt6","labt7","labt8","labt9","labt10","labt11","labt12"};
  10. //edix名
  11. QString txt[12]={"edi1","edi2","edi3","edi4","edi5","edi6","edi7","edi8","edi9","edi10","edi11","edi12"};
  12. //(加)按钮
  13. QString an[12]={"an1","an2","an3","an4","an5","an6","an7","an8","an9","an10","an11","an12"};
  14.  
  15. // 声明一个容器来存储已创建的控件指针
  16. QList<QWidget*> createdWidgets;
  17.  
  18. cede::cede(QWidget *parent) :
  19.     QWidget(parent),
  20.     ui(new Ui::cede)
  21. {
  22.     ui->setupUi(this);
  23.     //显示一个单独的窗口
  24.     setWindowFlags(Qt::Window);
  25.     //找寻父界面
  26.     QWidget* s=parentWidget();
  27.     //转化类型
  28.     qing = dynamic_cast<diang*>(s);
  29.     //连接信号和槽函数
  30.     connect(this,&cede::toj,qing,&diang::jajian);
  31.     //加法
  32.      connect(this,&cede::tos,qing,&diang::jiajian);
  33. }
  34.  
  35. cede::~cede()
  36. {
  37.     delete ui;
  38. }
  39. //槽
  40. void cede::chuan(QString date, int date2,int infos)
  41. {
  42.     QHBoxLayout* horizontalLayout = new QHBoxLayout(this);
  43.     qDebug()<<infos;
  44.     //创建Qlabel控件
  45.     QLabel* labet=new QLabel(date,this);
  46.     labet->setObjectName(lae[infos]);
  47.     //qDebug()<<labet->objectName();
  48.     labet->setFixedSize(100,100);
  49.     createdWidgets.append(labet);
  50.     //创建QTextEdit
  51.     QTextEdit* textEdit = new QTextEdit(QString::number(date2),this);
  52.     textEdit->setObjectName(txt[infos]);
  53.     textEdit->setFixedSize(50,50);
  54.     createdWidgets.append(textEdit);
  55.     //创建按钮
  56.     QPushButton* jia=new QPushButton("-",this);
  57.     jia->setObjectName(put[infos]);
  58.     connect(jia,&QPushButton::clicked,this,&cede::jianButtonclick);
  59.     jia->setFixedSize(80,50);
  60.     createdWidgets.append(jia);
  61.     QPushButton* jian=new QPushButton("+",this);
  62.     jian->setObjectName(an[infos]);
  63.     connect(jian,&QPushButton::clicked,this,&cede::jiaButtonclick);
  64.     jian->setFixedSize(50,50);
  65.     createdWidgets.append(jian);
  66.     //添加到水平布局
  67.     horizontalLayout->addWidget(labet);
  68.     horizontalLayout->addSpacing(10);
  69.     horizontalLayout->addWidget(jia);
  70.     horizontalLayout->addSpacing(10);
  71.     horizontalLayout->addWidget(textEdit);
  72.     horizontalLayout->addSpacing(10);
  73.     horizontalLayout->addWidget(jian);
  74.  
  75.     // 获取当前Widget的布局
  76.     QVBoxLayout* mainLayout = qobject_cast<QVBoxLayout*>(layout());
  77.  
  78.      // 将水平布局添加到垂直布局
  79.      mainLayout->addLayout(horizontalLayout);
  80.  
  81.  
  82. }
  83. //减
  84. void cede::jianButtonclick()
  85. {
  86.     //获取按钮属性
  87.     QPushButton* senderButton = qobject_cast<QPushButton*>(sender());
  88.     if(senderButton&&senderButton->objectName()==put[0])
  89.     {
  90.         QTextEdit* textEdit=findChild<QTextEdit*>("edi1");
  91.         if(textEdit)
  92.         {
  93.             QString stc=textEdit->toPlainText();
  94.             //转化
  95.             int k=stc.toInt();
  96.             if(k==0)
  97.             {
  98.  
  99.                 QMessageBox::information(this,"","已经是最少的了");
  100.                 qDebug()<<k;
  101.                 return;
  102.             }
  103.             k-=1;
  104.             textEdit->setText(QString::number(k));
  105.         }
  106.         emit toj(0);
  107.     }
  108.     else if(senderButton&&senderButton->objectName()==put[1])
  109.     {
  110.         QTextEdit* textEdit=findChild<QTextEdit*>("edi2");
  111.         if(textEdit)
  112.         {
  113.             QString stc=textEdit->toPlainText();
  114.             //转化
  115.             int k=stc.toInt();
  116.             if(k==0)
  117.             {
  118.  
  119.                 QMessageBox::information(this,"","已经是最少的了");
  120.                 return;
  121.             }
  122.             k-=1;
  123.             textEdit->setText(QString::number(k));
  124.         }
  125.            emit toj(1);
  126.     }
  127.     else if(senderButton&&senderButton->objectName()==put[2])
  128.     {
  129.         QTextEdit* textEdit=findChild<QTextEdit*>("edi3");
  130.         if(textEdit)
  131.         {
  132.             QString stc=textEdit->toPlainText();
  133.             //转化
  134.             int k=stc.toInt();
  135.             if(k==0)
  136.             {
  137.  
  138.                 QMessageBox::information(this,"","已经是最少的了");
  139.                  return;
  140.             }
  141.             k-=1;
  142.             textEdit->setText(QString::number(k));
  143.         }
  144.             emit toj(2);
  145.     }
  146.     else if(senderButton&&senderButton->objectName()==put[3])
  147.     {
  148.         QTextEdit* textEdit=findChild<QTextEdit*>("edi4");
  149.         if(textEdit)
  150.         {
  151.             QString stc=textEdit->toPlainText();
  152.             //转化
  153.             int k=stc.toInt();
  154.             if(k==0)
  155.             {
  156.  
  157.                 QMessageBox::information(this,"","已经是最少的了");
  158.                  return;
  159.             }
  160.             k-=1;
  161.             textEdit->setText(QString::number(k));
  162.         }
  163.            emit toj(3);
  164.     }
  165.     else if(senderButton&&senderButton->objectName()==put[4])
  166.     {
  167.         QTextEdit* textEdit=findChild<QTextEdit*>(txt[4]);
  168.         if(textEdit)
  169.         {
  170.             QString stc=textEdit->toPlainText();
  171.             //转化
  172.             int k=stc.toInt();
  173.             if(k==0)
  174.             {
  175.  
  176.                 QMessageBox::information(this,"","已经是最少的了");
  177.                  return;
  178.             }
  179.             k-=1;
  180.             textEdit->setText(QString::number(k));
  181.         }
  182.            emit toj(3);
  183.     }
  184.     else if(senderButton&&senderButton->objectName()==put[5])
  185.     {
  186.         QTextEdit* textEdit=findChild<QTextEdit*>(txt[5]);
  187.         if(textEdit)
  188.         {
  189.             QString stc=textEdit->toPlainText();
  190.             //转化
  191.             int k=stc.toInt();
  192.             if(k==0)
  193.             {
  194.  
  195.                 QMessageBox::information(this,"","已经是最少的了");
  196.                 return;
  197.             }
  198.             k-=1;
  199.             textEdit->setText(QString::number(k));
  200.         }
  201.            emit toj(3);
  202.     }
  203.     else if(senderButton&&senderButton->objectName()==put[6])
  204.     {
  205.         QTextEdit* textEdit=findChild<QTextEdit*>(txt[6]);
  206.         if(textEdit)
  207.         {
  208.             QString stc=textEdit->toPlainText();
  209.             //转化
  210.             int k=stc.toInt();
  211.             if(k==0)
  212.             {
  213.  
  214.                 QMessageBox::information(this,"","已经是最少的了");
  215.                 return;
  216.             }
  217.             k-=1;
  218.             textEdit->setText(QString::number(k));
  219.         }
  220.            emit toj(3);
  221.     }
  222.     else if(senderButton&&senderButton->objectName()==put[7])
  223.     {
  224.         QTextEdit* textEdit=findChild<QTextEdit*>(txt[7]);
  225.         if(textEdit)
  226.         {
  227.             QString stc=textEdit->toPlainText();
  228.             //转化
  229.             int k=stc.toInt();
  230.             if(k==0)
  231.             {
  232.  
  233.                 QMessageBox::information(this,"","已经是最少的了");
  234.                  return;
  235.             }
  236.             k-=1;
  237.             textEdit->setText(QString::number(k));
  238.         }
  239.            emit toj(3);
  240.     }
  241.     else if(senderButton&&senderButton->objectName()==put[8])
  242.     {
  243.         QTextEdit* textEdit=findChild<QTextEdit*>(txt[8]);
  244.         if(textEdit)
  245.         {
  246.             QString stc=textEdit->toPlainText();
  247.             //转化
  248.             int k=stc.toInt();
  249.             if(k==0)
  250.             {
  251.  
  252.                 QMessageBox::information(this,"","已经是最少的了");
  253.                  return;
  254.             }
  255.             k-=1;
  256.             textEdit->setText(QString::number(k));
  257.         }
  258.            emit toj(3);
  259.     }
  260.     else if(senderButton&&senderButton->objectName()==put[9])
  261.     {
  262.         QTextEdit* textEdit=findChild<QTextEdit*>(txt[9]);
  263.         if(textEdit)
  264.         {
  265.             QString stc=textEdit->toPlainText();
  266.             //转化
  267.             int k=stc.toInt();
  268.             if(k==0)
  269.             {
  270.  
  271.                 QMessageBox::information(this,"","已经是最少的了");
  272.                  return;
  273.             }
  274.             k-=1;
  275.             textEdit->setText(QString::number(k));
  276.         }
  277.            emit toj(3);
  278.     }
  279.     else if(senderButton&&senderButton->objectName()==put[10])
  280.     {
  281.         QTextEdit* textEdit=findChild<QTextEdit*>(txt[10]);
  282.         if(textEdit)
  283.         {
  284.             QString stc=textEdit->toPlainText();
  285.             //转化
  286.             int k=stc.toInt();
  287.             if(k==0)
  288.             {
  289.  
  290.                 QMessageBox::information(this,"","已经是最少的了");
  291.                  return;
  292.             }
  293.             k-=1;
  294.             textEdit->setText(QString::number(k));
  295.         }
  296.            emit toj(3);
  297.     }
  298.     else if(senderButton&&senderButton->objectName()==put[11])
  299.     {
  300.         QTextEdit* textEdit=findChild<QTextEdit*>(txt[11]);
  301.         if(textEdit)
  302.         {
  303.             QString stc=textEdit->toPlainText();
  304.             //转化
  305.             int k=stc.toInt();
  306.             if(k==0)
  307.             {
  308.  
  309.                 QMessageBox::information(this,"","已经是最少的了");
  310.                 return;
  311.             }
  312.             k-=1;
  313.             textEdit->setText(QString::number(k));
  314.         }
  315.            emit toj(3);
  316.     }
  317.  
  318. }
  319.  
  320. //加
  321. void cede::jiaButtonclick()
  322. {
  323.      QPushButton* senderButton = qobject_cast<QPushButton*>(sender());
  324.      if(senderButton&&senderButton->objectName()==an[0])
  325.      {
  326.             QTextEdit* textEdit=findChild<QTextEdit*>("edi1");
  327.             if(textEdit)
  328.             {
  329.                 QString stc=textEdit->toPlainText();
  330.                 //转化
  331.                 int k=stc.toInt();
  332.                 if(k==10)
  333.                 {
  334.  
  335.                     QMessageBox::information(this,"","已经是最多的了");
  336.                     return;
  337.                 }
  338.                 k+=1;
  339.                 textEdit->setText(QString::number(k));
  340.             }
  341.             emit tos(0);
  342.      }
  343.      else if(senderButton&&senderButton->objectName()==an[1])
  344.      {
  345.          QTextEdit* textEdit=findChild<QTextEdit*>("edi2");
  346.          if(textEdit)
  347.          {
  348.              QString stc=textEdit->toPlainText();
  349.              //转化
  350.              int k=stc.toInt();
  351.              if(k==10)
  352.              {
  353.  
  354.                  QMessageBox::information(this,"","已经是最多的了");
  355.                   return;
  356.              }
  357.              k+=1;
  358.              textEdit->setText(QString::number(k));
  359.          }
  360.             emit tos(1);
  361.      }
  362.      else if(senderButton&&senderButton->objectName()==an[2])
  363.      {
  364.          QTextEdit* textEdit=findChild<QTextEdit*>("edi3");
  365.          if(textEdit)
  366.          {
  367.              QString stc=textEdit->toPlainText();
  368.              //转化
  369.              int k=stc.toInt();
  370.              if(k==10)
  371.              {
  372.  
  373.                  QMessageBox::information(this,"","已经是最多的了");
  374.                   return;
  375.              }
  376.              k+=1;
  377.              textEdit->setText(QString::number(k));
  378.          }
  379.  
  380.             emit tos(2);
  381.      }
  382.      else if(senderButton&&senderButton->objectName()==an[3])
  383.      {
  384.          QTextEdit* textEdit=findChild<QTextEdit*>("edi4");
  385.          if(textEdit)
  386.          {
  387.              QString stc=textEdit->toPlainText();
  388.              //转化
  389.              int k=stc.toInt();
  390.              if(k==10)
  391.              {
  392.  
  393.                  QMessageBox::information(this,"","已经是最多的了");
  394.                   return;
  395.              }
  396.              k+=1;
  397.              textEdit->setText(QString::number(k));
  398.          }
  399.  
  400.             emit tos(3);
  401.      }
  402.      else if(senderButton&&senderButton->objectName()==an[4])
  403.      {
  404.          QTextEdit* textEdit=findChild<QTextEdit*>(txt[4]);
  405.          if(textEdit)
  406.          {
  407.              QString stc=textEdit->toPlainText();
  408.              //转化
  409.              int k=stc.toInt();
  410.              if(k==10)
  411.              {
  412.  
  413.                  QMessageBox::information(this,"","已经是最多的了");
  414.                  return;
  415.              }
  416.              k+=1;
  417.              textEdit->setText(QString::number(k));
  418.          }
  419.  
  420.             emit tos(3);
  421.      }
  422.      else if(senderButton&&senderButton->objectName()==an[5])
  423.      {
  424.          QTextEdit* textEdit=findChild<QTextEdit*>(txt[5]);
  425.          if(textEdit)
  426.          {
  427.              QString stc=textEdit->toPlainText();
  428.              //转化
  429.              int k=stc.toInt();
  430.              if(k==10)
  431.              {
  432.  
  433.                  QMessageBox::information(this,"","已经是最多的了");
  434.                  return;
  435.              }
  436.              k+=1;
  437.              textEdit->setText(QString::number(k));
  438.          }
  439.  
  440.             emit tos(3);
  441.      }
  442.      else if(senderButton&&senderButton->objectName()==an[6])
  443.      {
  444.          QTextEdit* textEdit=findChild<QTextEdit*>(txt[6]);
  445.          if(textEdit)
  446.          {
  447.              QString stc=textEdit->toPlainText();
  448.              //转化
  449.              int k=stc.toInt();
  450.              if(k==10)
  451.              {
  452.  
  453.                  QMessageBox::information(this,"","已经是最多的了");
  454.                   return;
  455.              }
  456.              k+=1;
  457.              textEdit->setText(QString::number(k));
  458.          }
  459.  
  460.             emit tos(3);
  461.      }
  462.      else if(senderButton&&senderButton->objectName()==an[7])
  463.      {
  464.          QTextEdit* textEdit=findChild<QTextEdit*>(txt[7]);
  465.          if(textEdit)
  466.          {
  467.              QString stc=textEdit->toPlainText();
  468.              //转化
  469.              int k=stc.toInt();
  470.              if(k==10)
  471.              {
  472.  
  473.                  QMessageBox::information(this,"","已经是最多的了");
  474.                   return;
  475.              }
  476.              k+=1;
  477.              textEdit->setText(QString::number(k));
  478.          }
  479.  
  480.             emit tos(3);
  481.      }
  482.      else if(senderButton&&senderButton->objectName()==an[8])
  483.      {
  484.          QTextEdit* textEdit=findChild<QTextEdit*>(txt[8]);
  485.          if(textEdit)
  486.          {
  487.              QString stc=textEdit->toPlainText();
  488.              //转化
  489.              int k=stc.toInt();
  490.              if(k==10)
  491.              {
  492.  
  493.                  QMessageBox::information(this,"","已经是最多的了");
  494.                   return;
  495.              }
  496.              k+=1;
  497.              textEdit->setText(QString::number(k));
  498.          }
  499.  
  500.             emit tos(3);
  501.      }
  502.      else if(senderButton&&senderButton->objectName()==an[9])
  503.      {
  504.          QTextEdit* textEdit=findChild<QTextEdit*>(txt[9]);
  505.          if(textEdit)
  506.          {
  507.              QString stc=textEdit->toPlainText();
  508.              //转化
  509.              int k=stc.toInt();
  510.              if(k==10)
  511.              {
  512.  
  513.                  QMessageBox::information(this,"","已经是最多的了");
  514.                   return;
  515.              }
  516.              k+=1;
  517.              textEdit->setText(QString::number(k));
  518.          }
  519.  
  520.             emit tos(3);
  521.      }
  522.      else if(senderButton&&senderButton->objectName()==an[10])
  523.      {
  524.          QTextEdit* textEdit=findChild<QTextEdit*>(txt[10]);
  525.          if(textEdit)
  526.          {
  527.              QString stc=textEdit->toPlainText();
  528.              //转化
  529.              int k=stc.toInt();
  530.              if(k==10)
  531.              {
  532.  
  533.                  QMessageBox::information(this,"","已经是最多的了");
  534.                   return;
  535.              }
  536.              k+=1;
  537.              textEdit->setText(QString::number(k));
  538.          }
  539.  
  540.             emit tos(3);
  541.      }
  542.      else if(senderButton&&senderButton->objectName()==an[11])
  543.      {
  544.          QTextEdit* textEdit=findChild<QTextEdit*>(txt[11]);
  545.          if(textEdit)
  546.          {
  547.              QString stc=textEdit->toPlainText();
  548.              //转化
  549.              int k=stc.toInt();
  550.              if(k==10)
  551.              {
  552.  
  553.                  QMessageBox::information(this,"","已经是最多的了");
  554.                   return;
  555.              }
  556.              k+=1;
  557.              textEdit->setText(QString::number(k));
  558.          }
  559.  
  560.             emit tos(3);
  561.      }
  562. }
  563. //退回
  564. void cede::on_pushButton_clicked()
  565. {
  566.     this->hide();
  567.     for (QWidget* widget : createdWidgets)
  568.     {
  569.     // 从布局中移除控件（如果有的话）
  570.     if (QLayout* layout = qobject_cast<QLayout*>(widget->parent())) {
  571.         layout->removeWidget(widget);
  572.     }
  573.     // 删除控件
  574.     delete widget;
  575.     }
  576.     //清空容器
  577.     createdWidgets.clear();
  578.     qing->show();
  579. }

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