我有一個密碼驗證器，我已經做到了，當少于 6 位數字時，將名為“invalid”的變數更改為 1，如果超過 16 位，則將名為“invalid”的變數更改為 1。如何做我讓它在變數為 1 時再次運行代碼，如果為 0 則停止。當無效變數為 1 時，有沒有辦法重新啟動代碼？
uj5u.com熱心網友回復：
初始化一個變數以檢查是否滿足條件。while 回圈將一直運行，直到密碼大小合適
check = 1
while check == 1:
input = input('Give your password')
if 6 < len(input) < 16:
check = 0
uj5u.com熱心網友回復：
您可以添加一些 if 陳述句。您可以使用“break”陳述句跳出回圈。這意味著當“break”被執行時，回圈將不再被執行。我不知道你的代碼是什么樣的，但你可以做這樣的事情。
if invalid == 0:
break
uj5u.com熱心網友回復：
invalid = True
while(invalid):
# your code here, accept/recheck password
if not(len(password)<6 or len(password)>16):
invalid = False # passw valid, breaks before next iteration
對于您的應用程式來說，True 和 False 似乎是 0 和 1 的更好替代方案，如果您選擇使用 0 和 1，它們仍然可以作業
uj5u.com熱心網友回復：
在閱讀您當前的代碼后，我會這樣做：
import re
print("""
Your password needs to have the following:
At least 1 lowercase character
At least 1 uppercase character
1 of these special characters ($#@)
Has to have a minium of 6 characters and a maximum of 16 characters
""")
invalid = 1
while invalid:
password = input("Please input a Password: ")
if len(password)<6 or len(password)>16:
print("Password length invalid, please try again")
elif not any(x in password for x in {"$","#","@"}):
print("Password must contain one of these special characters: $#@, please try again")
elif not re.search(r"[A-Z]", password) or not re.search(r"[a-z]", password):
print("Password must contain at least one capital and one lower case character, please try again")
else:
print("Password valid")
invalid = 0
結果：
Your password needs to have the following:
At least 1 lowercase character
At least 1 uppercase character
1 of these special characters ($#@)
Has to have a minium of 6 characters and a maximum of 16 characters
Please input a Password: hejhejhejhejhejhejhejhej
Password length invalid, please try again
Please input a Password: hej
Password length invalid, please try again
Please input a Password: hejhejhej
Password must contain one of these special characters: $#@, please try again
Please input a Password: hejhejhej#
Password must contain at least one capital and one lower case character, please try again
Please input a Password: Hejhejhej#
Password valid
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