# 绑定label单击事件
link.bind("<Button-1>", open_url)
tkinter中的鼠标和键盘事件
一： 鼠标事件

<Button-1>                                                                     鼠标左键单击

<Button-2>                                                                     鼠标中键单击

<Button-3>                                                                     鼠标右键单击

<1> = <Button-1> =<ButtonPress-1>

<2> = <Button-2> = <ButtonPress-2>

<3> = <Button-3> =<ButtonPress-3>

 

<B1-Motion>                                                                鼠标左键拖动

<B2-Motion>                                                                鼠标中键拖动

<B3-Motion>                                                                鼠标右键拖动

 

<ButtonRelease-1>                                                    鼠标左键释放

<ButtonRelease-2>                                                    鼠标中键释放

<ButtonRelease-3>                                                    鼠标右键释放

 

<Double-Button-1>                                                    鼠标左键双击

<Double-Button-2>                                                    鼠标中键双击

<Double-Button-3>                                                    鼠标右键双击

 

<Enter>                                                                        鼠标指针进入控件

 

<Leave>                                                                      鼠标指针离开控件

 

二：键盘事件

<Return>                                                                      回车

<Cancel>                                                                     Break键

<BackSpace>                                                             BackSpace键

<Tab>                                                                          Tab键

<Shift_L>                                                                     Shift键

<Alt_L>                                                                        Alt键

<Control_L>                                                               Control键

<Pause>                                                                     Pause键

<Caps_Lock>                                                           Caps_Lock键

<Escape>                                                                   Escapel键

<Prior>                                                                        PageUp键

<Next>                                                                        PageDown键

<End>                                                                         End键

<Home>                                                                      Home键

<Left>                                                                          左箭头

<Up>                                                                           上箭头

<Right>                                                                      右箭头

<Down>                                                                    下箭头

<Print>                                                                       Print Screen键

<Insert>                                                                      Insert键

<Delete>                                                                   Delete键

<F1>                                                                           F1键

.                                                                                     .

.                                                                                     .

<F12>                                                                         F12键

<Num_Lock>                                                            Num_Lock键

<Scroll_Lock>                                                         Scroll_Lock键

<key>                                                                        任意键

 

三： 可打印的字符：

a                                                                                  字母a

b                                                                                  字母b

1                                                                                  数字1

<KeyPress-a>

<KeyRelease-a>

A                                                                                 shift+a

B                                                                                 shift+b

 

四： 组合键：

<Shift-Up>                                                                Shift+Up

<Alt-Up>                                                                    Alt+Up

<Control-Up>                                                           Ctrl+Up

<Control-A>                                                             Ctrl+shift+a

 

五：窗体事件：

<Configure>                                                           改变大小或位置

<Visibility>                                                             当组件变为可视状态时触发

<Unmap>                                                               当组件由显示状态变为隐藏状态时触发

<Map>                                                                    当组件由隐藏状态变为显示状态时触发

<Expose>                                                              当组件从原本被其他组件遮盖的状态中暴漏出来时触发

<FocusIn>                                                             组件获得焦点时触发

<FocusOut>                                                          组件失去焦点时触发

<Circulate>                                                           当窗体由于系统协议要求在堆栈中置顶或压底时触发

<Colormap>                                                         当窗体的颜色或外貌改变时触发，Tk中忽略此细则

<Property>                                                           当窗体的属性被删除或改变时触发，属于TK的核心

<Destroy>                                                            当组件被销毁时触发

<Activate>                                                            与组件选项中的state项有关，表示组件由不可用变为可用时触发

<Deactiavte>                                                       与组件选项中的state项有关，表示组件由可用变为不可用时候触发

 

六： Event

widget                                                                  事件被触发的控件

x, y                                                                        鼠标距离窗体左上角的位置（坐标）

x_root, x_y                                                          鼠标距离屏幕左上角的位置（坐标）

char                                                                      键盘事件对应的字符代码

keysym                                                                 键盘事件对应的字符串

keycode                                                               键盘事件对应的按键码

num                                                                      鼠标事件对应的按键码

width, height                                                       控件的新大小

type                                                                      事件类型