C语言如何画饼图_c语言画饼状图

#include "graphics.h"
#include "conio.h"
#include "stdio.h"
#include "math.h"

int computer,printer,plotter,scanner,paper,disk;//六种资源
int n=6;//n的大小可以自己修改
float x0=200,y0=230,r=120;
float PI=3.14159265;
int color[6]={RED,YELLOW,BLUE,GREEN,WHITE,LIGHTRED};
int temp[6]={computer,printer,plotter,scanner,paper,disk};

void draw_notes()//画饼图边上的注释矩形图
{
  rectangle(350,110,450,350);
  for(int i=0;i<n;i++){
   line(350,150+i*40,450,150+i*40);
   setfillstyle(1,color[i]);
      bar(350,110+i*40,450,150+i*40);
  }
  outtextxy(470,130,"computer");
  outtextxy(470,170,"printer");
  outtextxy(470,210,"plotter");
  outtextxy(470,250,"scanner");
  outtextxy(470,290,"computer");
  outtextxy(540,290,"paper");
  outt