# 單行文本輸入框
entry = tkinter.Entry(root)
entry.pack()
# 事件函數(shù)
def changered(eventobj):
? ? # 通過(guò)事件對(duì)象獲取得到組件
? ? eventobj.widget['bg'] = 'red'#鼠標(biāo)進(jìn)入組件變紅
def wdc(eventobj):
? ? eventobj.widget['bg'] = 'white'#鼠標(biāo)離開(kāi)組件變白
# 事件綁定
entry.bind('<Enter>',changered)
entry.bind('<Leave>',wdc)

import tkinter

# 創(chuàng)建主窗口
root = tkinter.Tk()
# 設(shè)置窗口大小
root.minsize(300,200)

# 變紅色
def changer(eventobj):
? ? eventobj.widget['bg'] = 'red'

# 按Ctrl + r窗口變紅色:兩條命令 R和r都行
root.bind('<Control-KeyPress-r>',changer)
root.bind('<Control-KeyPress-R>',changer)

# 加入消息循環(huán)
root.mainloop()

import tkinter

# 創(chuàng)建主窗口
root = tkinter.Tk()
# 設(shè)置窗口大小
root.minsize(300,200)

# 按鈕1
btn1 = tkinter.Button(root,text = '1')
btn1.place(x = 20,y = 20,width = 40,height = 40)
# 按鈕2
btn2 = tkinter.Button(root,text = '2')
btn2.place(x = 80,y = 20,width = 40,height = 40)
# 按鈕3
btn3 = tkinter.Button(root,text = '3')
btn3.place(x = 140,y = 20,width = 40,height = 40)
# 按鈕4
btn4 = tkinter.Button(root,text = '4')
btn4.place(x = 20,y = 80,width = 40,height = 40)
# 按鈕5
btn5 = tkinter.Button(root,text = '5')
btn5.place(x = 80,y = 80,width = 40,height = 40)
# 按鈕6
btn6 = tkinter.Button(root,text = '6')
btn6.place(x = 140,y = 80,width = 40,height = 40)

def changebg(wdc):
? ? # 鼠標(biāo)放到按鈕上按鈕變紅
? ? wdc.widget['bg'] = 'red'
def changebg1(wdc):
? ? # 鼠標(biāo)離開(kāi)按鈕上按鈕變白
? ? wdc.widget['bg'] = 'white'
# 綁定按鈕鼠標(biāo)進(jìn)入事件
btn1.bind_class('Button','<Enter>',changebg)
btn1.bind_class('Button','<Leave>',changebg1)

# 加入消息循環(huán)
root.mainloop()

import tkinter

# 創(chuàng)建主窗口
root = tkinter.Tk()
# 設(shè)置窗口大小
root.minsize(300,200)

# 按鈕
btn1 = tkinter.Button(root,text = '###############')
btn1.pack()
# 輸入框
entry = tkinter.Entry(root)
entry.pack()
# 多行輸入框
text = tkinter.Text(root,width = 20,height = 5)
text.pack()
# 函數(shù)
def changeentry(e):
? ? # 鼠標(biāo)點(diǎn)擊任意組件,Entry組件都會(huì)變紅
? ? entry['bg'] = 'red'

# 事件綁定
btn1.bind_all('<Button-1>',changeentry)

# 加入消息循環(huán)
root.mainloop()