save project

diy2.py

@@ -5,5 +5,9 @@ while True:
     password = input("请输入密码:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
     if name == username and password == userpassword:
         print("登录成功!")
         print("登录成功!")
-    print("用户名和密码错误!请重新输入")
-print("欢迎来到原神!")
+        break
+    if name != username：
\ No newline at end of file
+        print("用户名不存在！请从新输入用户名)
+    if password != password：
+        print("密码错误，请从新输入密码")    
+print("欢迎来到原神!)
\ No newline at end of file