save project

diy2.py

@@ -8,7 +8,7 @@ while True:
         break
     if name!=username
         print("用户名输入错误")
-    if password!=userpassword
+    else password!=userpassword
         print("密码输入错误")
     print("用户名和密码错误!请重新输入")
 print("欢迎来到贝尔编程!")
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