save project

diy1.py

-username="原神"
+username="张"
 userpassword="12345"
-name=input("请输入账户名")
-password("请输入密码")
-if name==username and password==userpassword
-    print("登录成功")
\ No newline at end of file
+while True:
+    name=input("请输入账户名")
+    password=input("请输入密码")
+    if name==username and password==userpassword:
+        print("登录成功")
+        break
+    if name !=username:
+        print("用户名错误")
+    if password !=userpassword:
+        print("密码错误")
+print("欢迎来到贝尔编程")