save project

diy2.py

@@ -6,10 +6,10 @@ while True:
     if name == username and password==userpassword:
         print("登录成功!")
         break
-    if name!=username:
+    elif name!=username:
         print("用户账号错误！请重新输入")
-        continue
-    if password!=userpassword:
+        
+    else:
         print("用户密码错误!请重新输入")