Question

我正在尝试创建一个基本程序，要求用户输入然后重新输入密码。如果匹配，则会打印“密码已创建”。如果没有，它将继续要求用户重试，直到密码匹配。

这是我到目前为止所拥有的;我知道一个循环，至少需要一个“if”语句，但我不知道该怎么做。

password=raw_input("please select a password")
password_again=raw_input("please re-type your password")
loop=raw_input("Password does not match. Please try again")
if password_again==password:
      print("password created")
else: raw_input(loop)

非常感谢帮助！

Answer 1

我认为使用getpass模块是一个明智的决定：它会提示用户输入密码而不回显

from getpass import getpass

print "Please select a password: "
passwd = getpass()

print "Please re-type your password: "
if passwd == getpass():
    print "password created"
else:
    print "Password does not match. Please try again"

输出：

Please select a password:
Password:
Please re-type your password:
Password:
Password does not match. Please try again

Answer 2

这是了解while循环的好方法

询问价值

password=raw_input("please select a password")
password_again=raw_input("please re-type your password")

循环直到匹配

while password_again != password:
    print "They don't match please try again"
    password=raw_input("please select a password ")
    password_again=raw_input("please re-type your password ")

Answer 3

这不是循环，请使用while True和break：

while True:
    password=raw_input("please select a password")
    password_again=raw_input("please re-type your password")
    if password_again==password:
        print("password created")
        break
    else:
        print "Password does not match. Please try again"

Answer 4

最简单的方法是使用像这样的iter函数

password = raw_input("please select a password")
for re_password in iter(raw_input, password):
    print "Password does not match. Please try again :",
print "Password accepted!"

（Python）创建一个基本的“输入密码”程序

4 个答案: