save project

diy2.py

@@ -8,6 +8,7 @@ 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 != username:
     if password != username:
         print("mimayouwu")
         print("mimayouwu")
     print("用户名和密码错误!请重新输入")
     print("用户名和密码错误!请重新输入")