auto save

diy2.py

-i=3
-username = "python"
-userpassword = "123456"
-while True:
-    if i>0:
-        name = input("请输入用户名:")
-        password = input("请输入密码:")
-        i-=1 
-        if name == username and password==userpassword:
-            print("登录成功!")
-            break
-        if name != username:
-            print("用户名错误，请重新输入")
-            print("温馨提示：您还有"+str(i)+"次机会")
-            continue  
-        if password!=userpassword:
-            print("用户密码错误，请重新输入")
-            print("温馨提示：您还有"+str(i)+"次机会")
-    else :  
-        print("您的账号被锁定，请来我司解锁")
-        exit()
-print("欢迎来到贝尔编程!")
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