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pythonnet 的用法和配置 包括在python使用.net 和在C#.net使用python.

作者：很楠不爱3 | 2024-04-24 08:24:41

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pythonnet

前面看过我文章的都知道本人喜欢用pythonnet,  温故而知新,先说python嵌入.net.

首先:  需要安装  安装.偷个懒.   贴上上次的下载脚本.   后面需要什么直接往后面添..

  1. import os
  2. def cmd(S="pause"):
  3.     os.system(S)
  4. def P_install(S="mvtec-halcon==20111"):
  5.     cmd(rf"pip install {S} -i https://pypi.doubanio.com/simple")
  6. IN_list=[
  7. "mvtec-halcon==20111","pythonnet",
  8. "pywin32","pyautogui","keyboard","Pyinstaller",
  9. "pillow","numpy","opencv-python"
  10. ]
  11. for i in  IN_list:  
  12.     P_install(f"{i}")    
  13. while True:
  14.     cmd(rf"pip list");  CMD=input("请输入:");
  15.     cmd(rf"pip install {CMD} -i https://pypi.doubanio.com/simple");

如果计算机只有一个python环境 并且3.5以上3.10以下理论上都可以用. 顺便提一下,3.7以下版本不支持f字符串,所以老版本需要占位符+.format(). #大概就有这么回事..

接下来:导入clr ,下来C#那一套命名空间就可以当作python自己的包导入进来了. 

  1. #--------------------------------------------------------------------------
  2. import clr
  3. import System
  4. from System import String, Char, Int32,UInt16, Int64, Environment, IntPtr
  5. print(f"{clr.AddReference('System')}")
  6. print(f"{clr.AddReference('System.Drawing')}")
  7. #---------------------------------------------------------------------------

导入以后,就可以开心的写程序了. 我先来,在python里用>NET,写一个图片格式转换.

  1. from tkinter import ttk
  2. from tkinter import messagebox
  3. from tkinter import *
  4. import tkinter as tk
  5. import tkinter.messagebox
  6. import os,sys,time
  7. import tkinter.filedialog
  8. from ctypes import *
  9. from tkinter import Tk,Frame
  10. def cmd(s="pause"):
  11.     os.system(s)
  12. #--------------------------------------------------------------------------
  13. import clr
  14. import System
  15. from System import String, Char, Int32,UInt16, Int64, Environment, IntPtr
  16. print(f"{clr.AddReference('System')}")
  17. print(f"{clr.AddReference('System.Drawing')}")
  18. #---------------------------------------------------------------------------
  19. 文件名="11"
  20. R=f"{文件名}.bmp"
  21. W=f"{文件名}.jpg"
  22. System.Drawing.Bitmap(f"{R}").Save(f"{W}",System.Drawing.Imaging.ImageFormat.Jpeg);
  23. print("done!")
  24. time.sleep(2)
  25. #cmd()

可以看到主要就是这一句;

System.Drawing.Bitmap(f"{R}").Save(f"{W}",System.Drawing.Imaging.ImageFormat.Jpeg);

脚本同级目录放一张 "11.bmp"的图片. 运行之后 会生成 "11.jpg"的图,

尺寸从1282变成了98,尺寸缩小了十几倍.而图像精度几乎没有损失.

接下来:贴一个官方例子:

  1. #!/usr/bin/env python
  2. # -*- coding: utf-8 -*-
  3. import clr
  4. import System
  5. clr.AddReference("System.Windows.Forms")
  6. import System.Windows.Forms as WinForms
  7. from System.IO import File
  8. from System.Text import Encoding
  9. from System.Drawing import Color, Point, Size
  10. from System.Threading import ApartmentState, Thread, ThreadStart
  11. class Wordpad(WinForms.Form):
  12.     """A simple example winforms application similar to wordpad."""
  13.     def __init__(self):
  14.         super().__init__()
  15.         self.filename = ''
  16.         self.word_wrap = True
  17.         self.doctype = 1
  18.         self.InitializeComponent()
  19.         self.NewDocument()
  20.     def InitializeComponent(self):
  21.         """Initialize form components."""
  22.         self.components = System.ComponentModel.Container()
  23.         self.openFileDialog = WinForms.OpenFileDialog()
  24.         self.saveFileDialog = WinForms.SaveFileDialog()
  25.         self.mainMenu = WinForms.MainMenu()
  26.         self.fileMenu = WinForms.MenuItem()
  27.         self.menuFileNew = WinForms.MenuItem()
  28.         self.menuFileOpen = WinForms.MenuItem()
  29.         self.menuFileSave = WinForms.MenuItem()
  30.         self.menuFileSaveAs = WinForms.MenuItem()
  31.         self.menuFileSep_1 = WinForms.MenuItem()
  32.         self.menuFileExit = WinForms.MenuItem()
  33.         self.editMenu = WinForms.MenuItem()
  34.         self.menuEditUndo = WinForms.MenuItem()
  35.         self.menuEditRedo = WinForms.MenuItem()
  36.         self.menuEditSep_1 = WinForms.MenuItem()
  37.         self.menuEditCut = WinForms.MenuItem()
  38.         self.menuEditCopy = WinForms.MenuItem()
  39.         self.menuEditPaste = WinForms.MenuItem()
  40.         self.menuEditSep_2 = WinForms.MenuItem()
  41.         self.menuEditSelectAll = WinForms.MenuItem()
  42.  
  43.         self.formatMenu = WinForms.MenuItem()
  44.         self.menuFormatFont = WinForms.MenuItem()
  45.         self.menuFormatWordWrap = WinForms.MenuItem()
  46.  
  47.         self.aboutMenu = WinForms.MenuItem()
  48.         self.menuHelpAbout = WinForms.MenuItem()
  49.  
  50.         self.richTextBox = WinForms.RichTextBox()
  51.         self.statusBarPanel1 = WinForms.StatusBarPanel()
  52.         self.statusBar = WinForms.StatusBar()
  53.         self.fontDialog = WinForms.FontDialog()
  54.         self.statusBarPanel1.BeginInit()
  55.  
  56.         # ===================================================================
  57.         # File Menu
  58.         # ===================================================================
  59.  
  60.         self.menuFileNew.Text = "&New"
  61.         self.menuFileNew.Shortcut = WinForms.Shortcut.CtrlN
  62.         self.menuFileNew.ShowShortcut = False
  63.         self.menuFileNew.Index = 0
  64.         self.menuFileNew.Click += self.OnClickFileNew
  65.  
  66.         self.menuFileOpen.Text = "&Open"
  67.         self.menuFileOpen.Shortcut = WinForms.Shortcut.CtrlO
  68.         self.menuFileOpen.ShowShortcut = False
  69.         self.menuFileOpen.Index = 1
  70.         self.menuFileOpen.Click += self.OnClickFileOpen
  71.  
  72.         self.menuFileSave.Text = "&Save"
  73.         self.menuFileSave.Shortcut = WinForms.Shortcut.CtrlS
  74.         self.menuFileSave.ShowShortcut = False
  75.         self.menuFileSave.Index = 2
  76.         self.menuFileSave.Click += self.OnClickFileSave
  77.  
  78.         self.menuFileSaveAs.Text = "Save &As"
  79.         self.menuFileSaveAs.Index = 3
  80.         self.menuFileSaveAs.Click += self.OnClickFileSaveAs
  81.  
  82.         self.menuFileSep_1.Text = "-"
  83.         self.menuFileSep_1.Index = 4
  84.  
  85.         self.menuFileExit.Text = "E&xit"
  86.         self.menuFileExit.Shortcut = WinForms.Shortcut.AltF4
  87.         self.menuFileExit.ShowShortcut = False
  88.         self.menuFileExit.Index = 5
  89.         self.menuFileExit.Click += self.OnClickFileExit
  90.  
  91.         self.fileMenu.Text = "&File"
  92.         self.fileMenu.Index = 0
  93.  
  94.         items = (self.menuFileNew, self.menuFileOpen,
  95.                  self.menuFileSave, self.menuFileSaveAs,
  96.                  self.menuFileSep_1, self.menuFileExit)
  97.  
  98.         self.fileMenu.MenuItems.AddRange(items)
  99.  
  100.         # ===================================================================
  101.         # Edit menu
  102.         # ===================================================================
  103.  
  104.         self.menuEditUndo.Text = "&Undo"
  105.         self.menuEditUndo.Shortcut = WinForms.Shortcut.CtrlZ
  106.         self.menuEditUndo.Index = 0
  107.         self.menuEditUndo.Click += self.OnClickEditUndo
  108.  
  109.         self.menuEditRedo.Text = "&Redo"
  110.         self.menuEditRedo.Shortcut = WinForms.Shortcut.CtrlY
  111.         self.menuEditRedo.Index = 1
  112.         self.menuEditRedo.Click += self.OnClickEditRedo
  113.  
  114.         self.menuEditSep_1.Text = "-"
  115.         self.menuEditSep_1.Index = 2
  116.  
  117.         self.menuEditCut.Text = "Cut"
  118.         self.menuEditCut.Shortcut = WinForms.Shortcut.CtrlX
  119.         self.menuEditCut.Index = 3
  120.         self.menuEditCut.Click += self.OnClickEditCut
  121.  
  122.         self.menuEditCopy.Text = "Copy"
  123.         self.menuEditCopy.Shortcut = WinForms.Shortcut.CtrlC
  124.         self.menuEditCopy.Index = 4
  125.         self.menuEditCopy.Click += self.OnClickEditCopy
  126.  
  127.         self.menuEditPaste.Text = "Paste"
  128.         self.menuEditPaste.Shortcut = WinForms.Shortcut.CtrlV
  129.         self.menuEditPaste.Index = 5
  130.         self.menuEditPaste.Click += self.OnClickEditPaste
  131.  
  132.         self.menuEditSelectAll.Text = "Select All"
  133.         self.menuEditSelectAll.Shortcut = WinForms.Shortcut.CtrlA
  134.         self.menuEditSelectAll.Index = 7
  135.         self.menuEditSelectAll.Click += self.OnClickEditSelectAll
  136.  
  137.         self.menuEditSep_2.Text = "-"
  138.         self.menuEditSep_2.Index = 6
  139.  
  140.         self.editMenu.Text = "&Edit"
  141.         self.editMenu.Index = 1
  142.  
  143.         items = (self.menuEditUndo, self.menuEditRedo,
  144.                  self.menuEditSep_1, self.menuEditCut,
  145.                  self.menuEditCopy, self.menuEditPaste,
  146.                  self.menuEditSep_2, self.menuEditSelectAll)
  147.  
  148.         self.editMenu.MenuItems.AddRange(items)
  149.  
  150.         # ===================================================================
  151.         # Format Menu
  152.         # ===================================================================
  153.  
  154.         self.menuFormatWordWrap.Text = "Word Wrap"
  155.         self.menuFormatWordWrap.Checked = self.word_wrap
  156.         self.menuFormatWordWrap.Index = 1
  157.         self.menuFormatWordWrap.Click += self.OnClickFormatWordWrap
  158.  
  159.         self.menuFormatFont.Text = "Fo&nt"
  160.         self.menuFormatFont.Index = 0
  161.         self.menuFormatFont.Click += self.OnClickFormatFont
  162.  
  163.         self.formatMenu.Text = "F&ormat"
  164.         self.formatMenu.Index = 2
  165.  
  166.         items = (self.menuFormatWordWrap, self.menuFormatFont)
  167.  
  168.         self.formatMenu.MenuItems.AddRange(items)
  169.  
  170.         # ===================================================================
  171.         # About menu
  172.         # ===================================================================
  173.  
  174.         self.menuHelpAbout.Text = "&About"
  175.         self.menuHelpAbout.Index = 0
  176.         self.menuHelpAbout.Click += self.OnClickHelpAbout
  177.  
  178.         self.aboutMenu.Text = "&Help"
  179.         self.aboutMenu.Index = 3
  180.         self.aboutMenu.MenuItems.Add(self.menuHelpAbout)
  181.  
  182.         self.statusBarPanel1.Dock = WinForms.DockStyle.Fill
  183.         self.statusBarPanel1.Text = "Ready"
  184.         self.statusBarPanel1.Width = 755
  185.  
  186.         self.richTextBox.Dock = WinForms.DockStyle.Fill
  187.         self.richTextBox.Size = System.Drawing.Size(795, 485)
  188.         self.richTextBox.TabIndex = 0
  189.         self.richTextBox.AutoSize = True
  190.         self.richTextBox.ScrollBars = WinForms.RichTextBoxScrollBars.ForcedBoth
  191.         self.richTextBox.Font = System.Drawing.Font("Tahoma", 10.0)
  192.         self.richTextBox.AcceptsTab = True
  193.         self.richTextBox.Location = System.Drawing.Point(0, 0)
  194.  
  195.         self.statusBar.BackColor = System.Drawing.SystemColors.Control
  196.         self.statusBar.Location = System.Drawing.Point(0, 518)
  197.         self.statusBar.Size = System.Drawing.Size(775, 19)
  198.         self.statusBar.TabIndex = 1
  199.         self.statusBar.ShowPanels = True
  200.         self.statusBar.Panels.Add(self.statusBarPanel1)
  201.  
  202.         items = (self.fileMenu, self.editMenu, self.formatMenu, self.aboutMenu)
  203.         self.mainMenu.MenuItems.AddRange(items)
  204.  
  205.         self.openFileDialog.Filter = "Text documents|*.txt|RTF document|*.rtf"
  206.         self.openFileDialog.Title = "Open document"
  207.  
  208.         self.saveFileDialog.Filter = "Text Documents|*.txt|" \
  209.                                      "Rich Text Format|*.rtf"
  210.         self.saveFileDialog.Title = "Save document"
  211.         self.saveFileDialog.FileName = "Untitled"
  212.  
  213.         self.AutoScaleBaseSize = System.Drawing.Size(5, 13)
  214.         self.ClientSize = System.Drawing.Size(775, 537)
  215.         self.Menu = self.mainMenu
  216.         self.Text = "Python Wordpad"
  217.  
  218.         self.Controls.Add(self.statusBar)
  219.         self.Controls.Add(self.richTextBox)
  220.         self.statusBarPanel1.EndInit()
  221.  
  222.     def Dispose(self):
  223.         self.components.Dispose()
  224.         WinForms.Form.Dispose(self)
  225.  
  226.     def OnClickFileNew(self, sender, args):
  227.         self.SaveChangesDialog()
  228.         self.NewDocument()
  229.  
  230.     def OnClickFileOpen(self, sender, args):
  231.         self.SaveChangesDialog()
  232.         self.OpenDocument()
  233.  
  234.     def OnClickFileSave(self, sender, args):
  235.         self.SaveDocument()
  236.  
  237.     def OnClickFileSaveAs(self, sender, args):
  238.         self.filename = ''
  239.         self.SaveDocument()
  240.  
  241.     def OnClickFileExit(self, sender, args):
  242.         self.SaveChangesDialog()
  243.         self.Close()
  244.  
  245.     def OnClickEditUndo(self, sender, args):
  246.         self.richTextBox.Undo()
  247.  
  248.     def OnClickEditRedo(self, sender, args):
  249.         self.richTextBox.Redo()
  250.  
  251.     def OnClickEditCut(self, sender, args):
  252.         self.richTextBox.Cut()
  253.  
  254.     def OnClickEditCopy(self, sender, args):
  255.         self.richTextBox.Copy()
  256.  
  257.     def OnClickEditPaste(self, sender, args):
  258.         self.richTextBox.Paste()
  259.  
  260.     def OnClickEditSelectAll(self, sender, args):
  261.         self.richTextBox.SelectAll()
  262.  
  263.     def OnClickFormatWordWrap(self, sender, args):
  264.         value = not self.word_wrap
  265.         self.richTextBox.WordWrap = value
  266.         self.menuFormatWordWrap.Checked = value
  267.         self.word_wrap = value
  268.  
  269.     def OnClickFormatFont(self, sender, args):
  270.         if self.fontDialog.ShowDialog() == WinForms.DialogResult.OK:
  271.             self.richTextBox.SelectionFont = self.fontDialog.Font
  272.  
  273.     def OnClickHelpAbout(self, sender, args):
  274.         AboutForm().ShowDialog(self)
  275.  
  276.     def NewDocument(self):
  277.         self.doctype = 1
  278.         self.richTextBox.Rtf = ''
  279.         self.richTextBox.Text = ''
  280.         self.Text = 'Python Wordpad - (New Document)'
  281.         self.filename = ''
  282.  
  283.     def OpenDocument(self):
  284.         if self.openFileDialog.ShowDialog() != WinForms.DialogResult.OK:
  285.             return
  286.  
  287.         filename = self.openFileDialog.FileName
  288.  
  289.         stream = File.OpenRead(filename)
  290.  
  291.         buff = System.Array.CreateInstance(System.Byte, 1024)
  292.         buff.Initialize()
  293.         data = []
  294.         read = 1
  295.  
  296.         while read > 0:
  297.             read, _ = stream.Read(buff, 0, 1024)
  298.             temp = Encoding.ASCII.GetString(buff, 0, read)
  299.             data.append(temp)
  300.  
  301.         data = ''.join(data)
  302.         stream.Close()
  303.  
  304.         filename = self.filename = filename.lower()
  305.  
  306.         if filename.endswith('.rtf'):
  307.             self.richTextBox.Rtf = data
  308.             self.doctype = 2
  309.         else:
  310.             self.richTextBox.Text = data
  311.             self.doctype = 1
  312.  
  313.         self.Text = 'Python Wordpad - %s' % filename
  314.         self.richTextBox.Select(0, 0)
  315.  
  316.     def SaveDocument(self):
  317.         filename = self.filename
  318.  
  319.         if not filename:
  320.             if self.saveFileDialog.ShowDialog() != WinForms.DialogResult.OK:
  321.                 return
  322.             filename = self.saveFileDialog.FileName
  323.  
  324.         filename = self.filename = filename.lower()
  325.         self.Text = 'Python Wordpad - %s' % filename
  326.  
  327.         self.richTextBox.Select(0, 0)
  328.  
  329.         stream = File.OpenWrite(filename)
  330.  
  331.         if filename.endswith('.rtf'):
  332.             data = self.richTextBox.Rtf
  333.         else:
  334.             data = self.richTextBox.Text
  335.  
  336.         data = System.Text.Encoding.ASCII.GetBytes(System.String(data))
  337.  
  338.         stream.Write(data, 0, data.Length)
  339.         stream.Close()
  340.  
  341.     def SaveChangesDialog(self):
  342.         if self.richTextBox.Modified:
  343.             if WinForms.MessageBox.Show(
  344.                     "Save changes?", "Word Pad",
  345.                             WinForms.MessageBoxButtons.OK |
  346.                             WinForms.MessageBoxButtons.YesNo
  347.             ) == WinForms.DialogResult.Yes:
  348.                 self.SaveDocument()
  349.                 return 1
  350.         return 0
  351.  
  352.  
  353. class AboutForm(WinForms.Form):
  354.     def __init__(self):
  355.         super().__init__()
  356.         self.InitializeComponent()
  357.  
  358.     def InitializeComponent(self):
  359.         """Initialize form components."""
  360.         self.Text = "Python Wordpad"
  361.         self.components = System.ComponentModel.Container()
  362.  
  363.         self.btnClose = WinForms.Button()
  364.         self.label1 = WinForms.Label()
  365.         self.SuspendLayout()
  366.  
  367.         self.btnClose.Location = System.Drawing.Point(360, 181)
  368.         self.btnClose.Name = "bnClose"
  369.         self.btnClose.TabIndex = 1
  370.         self.btnClose.Text = "&Close"
  371.         self.btnClose.Click += self.OnClickClose
  372.  
  373.         self.label1.Location = System.Drawing.Point(20, 20)
  374.         self.label1.Name = "label1"
  375.         self.label1.Size = System.Drawing.Size(296, 140)
  376.         self.label1.TabIndex = 2
  377.         self.label1.Text = "Python Wordpad - an example winforms " \
  378.                            "application using Python.NET"
  379.  
  380.         self.AutoScaleBaseSize = System.Drawing.Size(5, 13)
  381.         self.ClientSize = System.Drawing.Size(300, 150)
  382.  
  383.         self.Controls.AddRange((self.label1, self.btnClose))
  384.  
  385.         self.FormBorderStyle = WinForms.FormBorderStyle.FixedDialog
  386.         self.MaximizeBox = False
  387.         self.MinimizeBox = False
  388.         self.Name = "AboutForm"
  389.         self.ShowInTaskbar = False
  390.         self.StartPosition = WinForms.FormStartPosition.CenterScreen
  391.         self.Text = "About"
  392.         self.ResumeLayout(False)
  393.  
  394.     def OnClickClose(self, sender, args):
  395.         self.Close()
  396.  
  397. def app_thread():
  398.     app = Wordpad()
  399.     WinForms.Application.Run(app)
  400.     app.Dispose()
  401.  
  402. def main():
  403.     thread = Thread(ThreadStart(app_thread))
  404.     thread.SetApartmentState(ApartmentState.STA)
  405.     thread.Start()
  406.     thread.Join()
  407.  
  408. if __name__ == '__main__':
  409.     main()

这是完全把winform拿过来了啊??!!,以后写python 带UI的可以直接 py-winform.

 还没完:继续. 

  1. #!/usr/bin/env python
  2. # -*- coding: utf-8 -*-
  3.  
  4. import clr
  5.  
  6. import System
  7. clr.AddReference("System.Windows.Forms")
  8. import System.Windows.Forms as WinForms
  9.  
  10. from System.Drawing import Color, Size, Point
  11.  
  12.  
  13. class Splitter(WinForms.Form):
  14.     """A WinForms example transcribed to Python from the MSDN article:
  15.        'Creating a Multipane User Interface with Windows Forms'."""
  16.  
  17.     def __init__(self):
  18.         super().__init__()
  19.  
  20.         # Create an instance of each control being used.
  21.         self.components = System.ComponentModel.Container()
  22.         self.treeView1 = WinForms.TreeView()
  23.         self.listView1 = WinForms.ListView()
  24.         self.richTextBox1 = WinForms.RichTextBox()
  25.         self.splitter1 = WinForms.Splitter()
  26.         self.splitter2 = WinForms.Splitter()
  27.         self.panel1 = WinForms.Panel()
  28.  
  29.         # Set properties of TreeView control.
  30.         self.treeView1.Dock = WinForms.DockStyle.Left
  31.         self.treeView1.Width = self.ClientSize.Width // 3
  32.         self.treeView1.TabIndex = 0
  33.         self.treeView1.Nodes.Add("TreeView")
  34.  
  35.         # Set properties of ListView control.
  36.         self.listView1.Dock = WinForms.DockStyle.Top
  37.         self.listView1.Height = self.ClientSize.Height * 2 // 3
  38.         self.listView1.TabIndex = 0
  39.         self.listView1.Items.Add("ListView")
  40.  
  41.         # Set properties of RichTextBox control.
  42.         self.richTextBox1.Dock = WinForms.DockStyle.Fill
  43.         self.richTextBox1.TabIndex = 2
  44.         self.richTextBox1.Text = "richTextBox1"
  45.  
  46.         # Set properties of Panel's Splitter control.
  47.         self.splitter2.Dock = WinForms.DockStyle.Top
  49.         # Width is irrelevant if splitter is docked to Top.
  50.         self.splitter2.Height = 3
  52.         # Use a different color to distinguish the two splitters.
  53.         self.splitter2.BackColor = Color.Blue
  54.         self.splitter2.TabIndex = 1
  56.         # Set TabStop to false for ease of use when negotiating UI.
  57.         self.splitter2.TabStop = False
  59.         # Set properties of Form's Splitter control.
  60.         self.splitter1.Location = System.Drawing.Point(121, 0)
  61.         self.splitter1.Size = System.Drawing.Size(3, 273)
  62.         self.splitter1.BackColor = Color.Red
  63.         self.splitter1.TabIndex = 1
  64.  
  65.         # Set TabStop to false for ease of use when negotiating UI.
  66.         self.splitter1.TabStop = False
  67.  
  68.         # Add the appropriate controls to the Panel.
  69.         for item in (self.richTextBox1, self.splitter2, self.listView1):
  70.             self.panel1.Controls.Add(item)
  71.  
  72.         # Set properties of Panel control.
  73.         self.panel1.Dock = WinForms.DockStyle.Fill
  74.         self.panel1.TabIndex = 2
  75.  
  76.         # Add the rest of the controls to the form.
  77.         for item in (self.panel1, self.splitter1, self.treeView1):
  78.             self.Controls.Add(item)
  79.  
  80.         self.Text = "Intricate UI Example"
  81.  
  82.     def Dispose(self):
  83.         self.components.Dispose()
  84.         WinForms.Form.Dispose(self)
  85.  
  86.  
  87. def main():
  88.     app = Splitter()
  89.     WinForms.Application.Run(app)
  90.     app.Dispose()
  91.  
  92.  
  93. if __name__ == '__main__':
  94.     main()

展示了 相对布局.

 再来一个:hello form.

  1.  
  2. import clr
  3.  
  4. clr.AddReference("System.Windows.Forms")
  5. import System.Windows.Forms as WinForms
  6. from System.Drawing import Size, Point
  7.  
  8.  
  9. class HelloApp(WinForms.Form):
  10.     """A simple hello world app that demonstrates the essentials of
  11.        winforms programming and event-based programming in Python."""
  12.  
  13.     def __init__(self):
  14.         super().__init__()
  15.         self.Text = "Hello World From Python"
  16.         self.AutoScaleBaseSize = Size(5, 13)
  17.         self.ClientSize = Size(392, 117)
  18.         h = WinForms.SystemInformation.CaptionHeight
  19.         self.MinimumSize = Size(392, (117 + h))
  20.  
  21.         # Create the button
  22.         self.button = WinForms.Button()
  23.         self.button.Location = Point(160, 64)
  24.         self.button.Size = Size(820, 20)
  25.         self.button.TabIndex = 2
  26.         self.button.Text = "Click Me!"
  27.  
  28.         # Register the event handler
  29.         self.button.Click += self.button_Click
  30.  
  31.         # Create the text box
  32.         self.textbox = WinForms.TextBox()
  33.         self.textbox.Text = "Hello World"
  34.         self.textbox.TabIndex = 1
  35.         self.textbox.Size = Size(1260, 40)
  36.         self.textbox.Location = Point(160, 24)
  37.  
  38.         # Add the controls to the form
  39.         self.AcceptButton = self.button
  40.         self.Controls.Add(self.button)
  41.         self.Controls.Add(self.textbox)
  42.  
  43.     def button_Click(self, sender, args):
  44.         """Button click event handler"""
  45.         print ("Click")
  46.         WinForms.MessageBox.Show("Please do not press this button again.")
  47.  
  48.     def run(self):
  49.         WinForms.Application.Run(self)
  50.  
  51.  
  52. def main():
  53.     form = HelloApp()
  54.     print ("form created")
  55.     app = WinForms.Application
  56.     print ("app referenced")
  57.     app.Run(form)
  58.  
  59.  
  60. if __name__ == '__main__':
  61.     main()

这个运行结果就不展示了. 运行起来就可以看到.

还没完, 这个脚本展示了 WPF, 可以和  xaml  单独写

  1. import clr
  2. import sys
  3. if sys.platform.lower() not in ['cli','win32']:
  4.     print("only windows is supported for wpf")
  5. clr.AddReference(r"wpf\PresentationFramework")
  6. from System.IO import StreamReader
  7. from System.Windows.Markup import XamlReader
  8. from System.Threading import Thread, ThreadStart, ApartmentState
  9. from System.Windows import Application, Window
  10.  
  11.  
  12. class MyWindow(Window):
  13.     def __init__(self):
  14.         stream = StreamReader("DynamicGrid.xaml")
  15.         window = XamlReader.Load(stream.BaseStream)
  16.         Application().Run(window)
  17.             
  18.  
  19. if __name__ == '__main__':
  20.     thread = Thread(ThreadStart(MyWindow))
  21.     thread.SetApartmentState(ApartmentState.STA)
  22.     thread.Start()
  23.     thread.Join()

当然还有xaml.

  1. <Window 
  2.        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
  3.        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
  4.        Title="WpfApplication1" Height="300" Width="300">
  5.     <Grid>
  6.         <Grid.RowDefinitions>
  7.             <RowDefinition Height="*"/>
  8.             <RowDefinition Height="Auto"/>
  9.             <RowDefinition Height="*"/>
  10.         </Grid.RowDefinitions>
  11.         <Grid.ColumnDefinitions>
  12.             <ColumnDefinition Width="*"/>
  13.             <ColumnDefinition Width="Auto"/>
  14.             <ColumnDefinition Width="*"/>
  15.         </Grid.ColumnDefinitions>
  16.         <Label Content="Left" Grid.Column="0" Background="LightBlue" />
  17.         <GridSplitter 
  18.                     VerticalAlignment="Stretch" 
  19.                     HorizontalAlignment="Stretch"
  20.                     Grid.Column="1"
  21.                     Width="5" 
  22.                     Grid.RowSpan="3"/>
  23.         <Label Content="Right" Grid.Column="2" Grid.Row="2" Background="LightBlue" />
  24.         <Label Content="Top" Grid.Column="2" Background="LightGreen"/>
  25.         <GridSplitter 
  26.                     HorizontalAlignment="Stretch"
  27.                     VerticalAlignment="Stretch"
  28.                     Grid.Row="1"
  29.                     Width="Auto"
  30.                     Height="5" 
  31.                     Grid.ColumnSpan="3"/>
  32.         <Label Content="Bottom" Grid.Column="0" Grid.Row="2" Background="LightGreen" />
  33.     </Grid>
  34. </Window>

python 里使用.NET 说完了.

 接下来说一下 C# 中如何嵌入python .主要说环境怎么配. 毕竟对C# 中如何嵌入python 不熟, 况且就算真的有需求 命令行 或者网络 应该更容易上手些... 环境配置过程在注释中体现.直接上例子:

  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5. using System.Threading.Tasks;
  6. using Python.Runtime; // 这个是 nuget下载的,并不是python安装目录里那个dll
  7. using System.Net;
  8. using SC= System.Console;
  9. namespace CsPyNET
  10. {
  11.     class Program
  12.     {
  13.         static void Main(string[] args)
  14.         {
  15.             /*
  16.             操作系统: Win10 64位:
  17.             python解释器: Python3.8.8_64位  VS2015.
  18.             配置管理器:解决方案也得是64位;
  19.             项目->属性->[目标框架].NET Fraemwork 4 {快捷键::alt+PP}
  20.             工具->NuGet包管理器->管理解决方案的NuGet程序包(N) {快捷键:alt+TNN}. [浏览->底下搜索框搜 pythonnet 出现很多选项]
  21.                 pythonnet_py38_win.2.5.2
  22.                 安装这个:到当前项目.
  23.             安装后:在.sln同级目录packages文件夹下会下载对应文件.
  24.             引用该文件
  25.             //using Python.Runtime;
  26.             C:\Users\Administrator\AppData\Local\Programs\Python\Python38\Lib\site-packages\pythonnet\runtime   
  27.             */
  28.             // 这是我的pythonn安装路径. 
  29.  
  30.             /*
  31.              "https://pythonnet.github.io/"
  32.              "将 Python 嵌入到 .NET 中 - Python.NET 文档  https://pythonnet.github.io/pythonnet/dotnet.html"
  33.        
  34.  
  35.              */
  36.             string dllPath = @"C:\Users\Administrator\AppData\Local\Programs\Python\Python38\python38.dll";
  37.             string pythonHomePath = @"C:\Users\Administrator\AppData\Local\Programs\Python\Python38";
  38.             string[] py_paths = 
  39.             {
  40.             "DLLs",
  41.             "Lib",// "原文是lib   我的3.8只有Lib路径,所以改成 Lib"
  42.             "Lib/site-packages",
  43.             "Lib/site-packages/win32" ,
  44.             "Lib/site-packages/win32/lib",
  45.             "Lib/site-packages/Pythonwin"
  46.             };
  47.             string pySearchPath = $"{pythonHomePath};";
  48.             foreach (string p in py_paths)
  49.             {
  50.                     pySearchPath += $"{pythonHomePath}/{p};";
  51.             }
  52.            // 此处解决BadPythonDllException报错
  53.            // Runtime.PythonDLL = dllPath; //
  54.             Environment.SetEnvironmentVariable("PYTHONNET_PYDLL", dllPath);
  55.             // 配置python环境搜索路径解决PythonEngine.Initialize() 崩溃
  56.             PythonEngine.PythonHome = pythonHomePath;
  57.             PythonEngine.PythonPath = pySearchPath;
  58.             PythonEngine.Initialize();
  59.             using (Py.GIL())
  60.             {
  61.                 dynamic np = Py.Import("numpy");
  62.                 dynamic cv2= Py.Import("cv2");
  63.                 PyObject ar = np.array(new int[] { 1, 2, 3, 4 });
  64.                  SC.WriteLine(ar);
  65.                  SC.WriteLine(cv2.__version__);
  66.             }
  67.             SC.WriteLine("");
  68.             SC.ReadKey();// ############### wait #############    //##################################################################################################
  69.         }//Main
  70. //##################################################################################################
  71.     }//Program
  72. }//CsPyNET

结束.

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