save project

diy1.py

@@ -9,5 +9,8 @@ while True:
         break
         break
     if name != username:
     if name != username:
         print("用户名不存在")
         print("用户名不存在")
+        continue
     if password !=userpassword:
     if password !=userpassword:
         print("密码不存在")
         print("密码不存在")
+        continue
+print("欢迎来到贝尔编程")