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()