python的图形化界面（1）

Z时代
2024-01-10
分类：综合

python

今天学习了python的图形化界面。

遇到的问题，就是导入Tklinter类的时候，出现了错误，提示说模块不存在，但是最后在文件的头部添加一行代码之后解决：

#! /usr/bin/env python

　　先创建一个空的界面窗口吧:

#! /usr/bin/env python
#coding=utf-8
from Tkinter import *
class LabelDemo( Frame ):
   """Demonstrate Labels"""
   def __init__( self ):
      """Create three Labels and pack them"""
      Frame.__init__( self )   # initializes Frame instance
def main():
   LabelDemo().mainloop()  # starts event loop
if __name__ == "__main__":
   main()

　　默认的窗口什么都没有，很丑。

然后先添加几个标签玩玩吧：

#! /usr/bin/env python
#coding=utf-8
from Tkinter import *
class LabelDemo( Frame ):
   """Demonstrate Labels"""
   def __init__( self ):
      """Create three Labels and pack them"""
      Frame.__init__( self )   # initializes Frame instance
      # frame fills all available space
      self.pack( expand = YES, fill = BOTH )
      self.master.title( "Labels" )
      self.Label1 = Label( self, text = "Label with text" )
      # resize frame to accommodate Label
      self.Label1.pack()
      self.Label2 = Label( self,
         text = "Labels with text and a bitmap" )
      # insert Label against left side of frame
      self.Label2.pack( side = LEFT )
      # using default bitmap image as label
      self.Label3 = Label( self, bitmap = "warning" )
      self.Label3.pack( side = LEFT )
def main():
   LabelDemo().mainloop()  # starts event loop
if __name__ == "__main__":
   main()