检查大写的最简单方法

Question

在这里，我尝试验证密码并检查密码中是否有大写和数字，然后将其保存为不同的变量。使用函数，我是否可以这样做。缩进在格式上已经改变，所以请在其他方面帮助我。

def length(long):
    while len(long) < 10:
        print("Please make your password longer, up to at least 10 characters.")
        print("Your password is only " + str(len(long) + " characters long")

if password.isupper() = True:
  print("Welcome to this student interface")
  username = input("Please enter a username")
  password = input("Please enter a strong password")
  length(password)

这就是我现在所做的：

def length(long):
    bool LengthCheck = False
    if len(long) < 10:
        print("Please make your password longer, up to at least 10 characters.")
        print("Your password is only " + str(len(long) + " characters long")
    else:
        LengthCheck = True

errors = []

print("Welcome to this student interface")
username = input("Please enter a username")
password = input("Please enter a strong password")
length(password)

bool Capcheck = False
bool DigCheck  = False

while CapCheck = False or CapCheck = False:
    length(password)

    if not any(x.isupper() for x in password):
        errors.append("Your password needs at least 1 capital.")
    else:
        CapCheck = True
        break

    if not any(x.islower() for x in password):
        errors.append("......... Why?")

    if not any(x.isdigit() for x in password):
        errors.append("You need to have at least 1 digit")
    else:
        DigCheck = True
        break

    if errors:
        print(" ".join(errors))
        password = input("Please enter a stronger password")

显然我的布尔值有错误，请帮助

def length(long):
    bool LengthCheck = False
    if len(long) < 10:
        print("Please make your password longer, up to at least 10 characters.")
        print("Your password is only " + str(len(long) + " characters long")
    else:
        LengthCheck = True

Answer 1

尝试使用islower()：

password.islower()

如果密码中没有大写字母，则返回 True。

---

现在如果你想检查它是否有第 i 个它，你必须关注@jubnvz：

any(i.isdigit() for i in password)

或更具体的方式：

any(map(str.isdigit, password))

---

对于您的密码条目，请尝试：

while True:
    password = input(""Please enter a strong password:")
    if not any(x.isupper() for x in password):
        print("Your password needs at least 1 upper case.")
    elif not any(x.isdigit() for x in password):
        print("You need to have at least 1 digit")
    elif not any(x.islower() for x in password):
        print("Your password needs at least 1 lower case.")
    elif len(password) < 10:
        print("Please make your password longer, up to at least 10 characters.")
        print("Your password is only " + str(len(password)) + " characters long")
    else:
        break

如果您也想确认密码，请尝试：

while True:
    password = input(""Please enter a strong password:")
    if not any(x.isupper() for x in password):
        print("Your password needs at least 1 upper case.")
    elif not any(x.isdigit() for x in password):
        print("You need to have at least 1 digit")
    elif not any(x.islower() for x in password):
        print("Your password needs at least 1 lower case.")
    elif len(password) < 10:
        print("Please make your password longer, up to at least 10 characters.")
        print("Your password is only " + str(len(password)) + " characters long")
    else:
        passwordcon = input(""Please confirm your password:")
        if passwordcon == password:
            break
        else:
            print("Your passwords do not match, try again'")

Answer 2

 any([p.isupper() for p in password])