save project

diy2.py

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