"Go" python3.3 graphical interface

Python is graphically implemented by invoking the Tkinter library. Windows in Python are more content-sized and automatically scaled.

• Example 1: Create a simple window:

• Import *    # introduces the Tkinter library root = Tk ()    ## main Window's member function, and the main window works to start accepting mouse and keyboard actions. 

• Example 2: Add some controls, such as Label,button

• From tkinter Import *root = Tk (classname= ' aaa ') label = label (root) label[' text "] = ' This is a label. ' Label.pack ()    #和控件的布局排版有关的设置root. Mainloop ()

• • Label1 = lable (root) #参数为root表明这个控件是root主窗口的成员控件
  • label1[' text '] = ' This is a label ' #设置标签的text属性值

• Example 3: Event of a control, handled by a function

• From TkinterImport *Def On_click (): Button[ ' text "=  ' it is Changed. root = Tk (Classname= ' aaa  ") button = button (root) button[ ' text "=  ' change it "button[command "= On_click #  event correlation function button.pack () Root.mainloop ()       

  • A variable is a relationship that is associated at run time rather than before and after the code, so button[' text ' = ' It is changed. ' does not report undefined errors.

"Go" python3.3 graphical interface