save project

diy1.py

@@ -6,9 +6,8 @@ while True:
     if a == username and b ==userpassword:
     if a == username and b ==userpassword:
         print("登录成功！")
         print("登录成功！")
         break# 如果用户输入的账号、密码正确，提示登陆成功
         break# 如果用户输入的账号、密码正确，提示登陆成功
-    if a != username:
+    elif a != username:
         print("账号错误，请重新输入：")
         print("账号错误，请重新输入：")
-    if b != userpassword :    
+    else:    
         print("密码错误，请重新输入：")
         print("密码错误，请重新输入：")
-        continue
 print("欢迎来到贝尔编程！")
 print("欢迎来到贝尔编程！")
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