save project

diy2.py

@@ -6,8 +6,9 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!")
         break
-    if name!=username
-        print("用户名和密码错误!请重新输入")
-    if password!=username
-        print("用户名和密码错误!请重新输入"")
+    if name!=username:
+        print("密码错误!请重新输入")
+        continue
+    if password!=username:
+        print("用户名错误!请重新输入"")
 print("欢迎来到贝尔编程!")
\ No newline at end of file