Python3 实现用户登陆，输入三次密码

不加注释版

#/usr/bin/python3
import readline
user = "seven"
passwd = "123"
username = input("please the enter user:")
for i in range(3):password = input("please the enter password:")if password.isdigit():password = int(password)if username == user and password == passwd:print("logon successfull")breakelse:print("logon failed")else:print("logon failed")

加注释版

#/usr/bin/python3
import readline#导入readline模块，否则无法移动光标和删除
user = "seven"
passwd = "123"#定义账号密码
username = input("please the enter user:")#提示用户输入账号信息  for i in range(3):#如果登陆失败允许重复输入三次password = input("please the enter password")#提示用户输入密码if password.isdigit():#判断输入的是否是数字 是则进行下一步 否则返回失败password = int(password)#赋值定义密码等于输入密码if username == user and password == passwd:#判断账号和密码是否一致print("logon successfull")#Truebreakelse:print("logon failed")#Falseelse:print("logon failed")#不是数字则返回False

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