save project

diy1.py

@@ -5,5 +5,8 @@ password = input("请输入密码:")
 while True:
     if name == username and password == userpassword:
        break
-       print("请重新输入")
-print("登陆成功:")
+    if name != username:
+        print("用户名不存在，请重新输入！")
+    if password != userpassword:
+        print("用户名不存在")
+print("登陆成功")