Python tkinter之Bind（绑定事件）的使用示例

# -*- encoding=utf-8 -*-

import tkinter
from tkinter import *


def left_mouse_down(event):
  print('鼠标左键按下')

  # 事件的属性
  widget = event.widget
  print('触发事件的组件:{}'.format(widget))
  print('组件颜色:{}'.format(widget.cget('bg')))
  widget_x = event.x # 相对于组件的横坐标x
  print('相对于组件的横坐标:{}'.format(widget_x))
  widget_y = event.y # 相对于组件的纵坐标y
  print('相对于组件的纵坐标:{}'.format(widget_y))
  x_root = event.x_root # 相对于屏幕的左上角的横坐标
  print('相对于屏幕的左上角的横坐标:{}'.format(x_root))
  y_root = event.y_root # 相对于屏幕的左上角的纵坐标
  print('相对于屏幕的左上角的纵坐标:{}'.format(y_root))


def left_mouse_up(event):
  print('鼠标左键释放')
def moving_mouse(event):
  print('鼠标左键按下并移动')
def moving_into(event):
  print('鼠标进入')
def moving_out(event):
  print('鼠标移出')
def right_mouse_down(event):
  print('鼠标右键按下')
def right_mouse_up(event):
  print('鼠标右键释放')
def pulley_up(event):
  print('滑轮向上滚动')
def focus(event):
  print('聚焦事件')
def unfocus(event):
  print('失焦事件')


if __name__ == '__main__':
  win = tkinter.Tk() # 窗口
  win.title('南风丶轻语') # 标题
  screenwidth = win.winfo_screenwidth() # 屏幕宽度
  screenheight = win.winfo_screenheight() # 屏幕高度
  width = 500
  height = 300
  x = int((screenwidth - width) / 2)
  y = int((screenheight - height) / 2)
  win.geometry('{}x{}+{}+{}'.format(width, height, x, y)) # 大小以及位置

  label = Label(text='标签', relief='g', font=('黑体', 20))
  label.pack(pady=10)

  label.bind('<Button-1>', left_mouse_down) # 鼠标左键按下
  label.bind('<ButtonRelease-1>', left_mouse_up) # 鼠标左键释放
  label.bind('<Button-3>', right_mouse_down) # 鼠标右键按下
  label.bind('<ButtonRelease-3>', right_mouse_up) # 鼠标右键释放
  label.bind('<B1-Motion>', moving_mouse) # 鼠标左键按下并移动
  label.bind('<Enter>', moving_into) # 鼠标移入事件
  label.bind('<Leave>', moving_out) # 鼠标移出事件
  label.bind('<FocusIn>', focus) # 聚焦事件
  label.bind('<FocusOut>', unfocus) # 失焦事件
  label.focus_set() # 直接聚焦
  Entry().pack()

  win.mainloop()

# -*- encoding=utf-8 -*-
import tkinter
from tkinter import *


def keyboard_event(event):
  char = event.char
  print('回车 char:{}'.format(char))
  key_code = event.keycode
  print('回车 key code:{}'.format(key_code))


def entry_enter(event):
  print('输入的内容为:' + entry.get())


def shift_f(event):
  print('SHIFT + F')
  print(event.char)
  print(event.keycode)


def num_lock(event):
  print('num_lock')
  print(event.char)
  print(event.keycode)


if __name__ == '__main__':
  win = tkinter.Tk() # 窗口
  win.title('南风丶轻语') # 标题
  screenwidth = win.winfo_screenwidth() # 屏幕宽度
  screenheight = win.winfo_screenheight() # 屏幕高度
  width = 500
  height = 300
  x = int((screenwidth - width) / 2)
  y = int((screenheight - height) / 2)
  win.geometry('{}x{}+{}+{}'.format(width, height, x, y)) # 大小以及位置

  label = Label(text='标签', relief='g', font=('黑体', 20))
  label.pack(pady=10)
  label.focus_set()
  label.bind('<Return>', keyboard_event) # 按下回车
  label.bind('<Shift F>', shift_f)
  label.bind('<Num_Lock>', num_lock)

  entry = Entry()
  entry.pack()
  entry.bind('<Return>', entry_enter) # 按下回车

  win.mainloop()