public static string DelBook(int bookid, int delNew) { LayUIDelBook delBook = new LayUIDelBook(); if (BookInfoDAL.DelBook(bookid, delNew) == 1) { delBook.code = 0; delBook.msg = "success"; } else { delBook.code = 1; delBook.msg = "failed"; } return(JsonConvert.SerializeObject(delBook)); }