save project

diy1.py

@@ -6,10 +6,9 @@ while True:
     if name==username and password==userpassword:
     if name==username and password==userpassword:
         print("登录成功！")
         print("登录成功！")
         break
         break
-    if name != username:  
+    elif name != username:  
         print("用户名不存在，请重新输入")
         print("用户名不存在，请重新输入")
-        continue
-    if password != userpassword:
+    else:
         print("密码输入错误，请重新输入")   
         print("密码输入错误，请重新输入")   
 print("欢迎来到贝尔编程！")   
 print("欢迎来到贝尔编程！")