python交互式图形编程实例（一）


            本文实例为大家分享了python交互式图形编程的具体代码，供大家参考，具体内容如下







#!/usr/bin/env python3# -*- coding: utf-8 -*-

#温度转换



from graphics import *

 

win = GraphWin("摄氏温度转换器", 400, 300)

win.setCoords(0.0, 0.0, 3.0, 4.0)

# 绘制接口

Text(Point(1,3), " 摄氏温度:").draw(win)

Text(Point(1,1), " 华氏温度:").draw(win)

input = Entry(Point(2,3), 5)

input.setText("0.0")

input.draw(win)

output = Text(Point(2,1),"")

output.draw(win)

button = Text(Point(1.5,2.0),"转换")

button.draw(win)

Rectangle(Point(1,1.5), Point(2,2.5)).draw(win)

# 等待鼠标点击

win.getMouse()

# 转换输入

celsius = eval(input.getText())

fahrenheit = 9.0/5.0 * celsius + 32.0

# 显示输出，改变按钮

output.setText(fahrenheit)

button.setText("退出")

# 等待响应鼠标点击，退出程序

win.getMouse()

win.close()











#!/usr/bin/env python3

# -*- coding: utf-8 -*-

#方块移动



from tkinter import *

 

def main():  

  tk = Tk()

  canvas = Canvas(tk, width = 400, height = 400)

  canvas.pack()

 

  def moverectangle(event):

    if event.keysym == "Up":

      canvas.move(1,0,-5)

    elif event.keysym == "Down":

      canvas.move(1,0,5)

    elif event.keysym == "Left":

      canvas.move(1,-5,0)

    elif event.keysym == "Right":

      canvas.move(1,5,0)

     

  canvas.create_rectangle(180,180,220,220,fill="red")

  canvas.bind_all("<KeyPress-Up>",moverectangle)

  canvas.bind_all("<KeyPress-Down>",moverectangle)

  canvas.bind_all("<KeyPress-Left>",moverectangle)

  canvas.bind_all("<KeyPress-Right>",moverectangle)

  tk.mainloop()

 

if __name__ == '__main__':

  main()











#!/usr/bin/env python3

# -*- coding: utf-8 -*-

from graphics import *



 

def convert(input):

  celsius = eval(input.getText())  # 输入转换

  fahrenheit = 9.0/5.0 * celsius + 32

  return fahrenheit 

def colorChange(win,input):

  cnum = eval(input.getText())

  weight = cnum / 100.0

  newcolor = color_rgb(int(255*weight),int(66+150*(1-weight)),int(255*(1-weight)))

  win.setBackground(newcolor)

def main():

  win = GraphWin("摄氏温度转换", 400, 300)

  win.setCoords(0.0, 0.0, 3.0, 4.0)

  # 绘制输入接口

  Text(Point(1,3),

     " 摄氏温度:").draw(win)

  Text(Point(2,2.7),

     " (请输入： 0.0-100.0 )").draw(win)

  Text(Point(1,1),

     "华氏温度:").draw(win)

  input = Entry(Point(2,3), 5)

  input.setText("0.0")

  input.draw(win)

  output = Text(Point(2,1),"")

  output.draw(win)

  button = Text(Point(1.5,2.0),"转换")

  button.draw(win)

  rect = Rectangle(Point(1,1.5), Point(2,2.5))

  rect.draw(win)

  # 等待鼠标点击

  win.getMouse()

  result = convert(input)  # 转换输入

  output.setText(result)  # 显示输出 

  # 改变颜色

  colorChange(win,input)

  # 改变按钮字体

  button.setText("退出")

  # 等待点击事件，退出程序

  win.getMouse()

  win.close()

 

if __name__ == '__main__':

  main()







以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持中文源码网。