enych

摘要： //查询 //查询指定字符串出现的个数，类似于模糊查询select count(*) from Book where Name like '%字符串%' db.Book.Where(x => x.Name.Contains(txtName.Text.Trim())).Count(); //接收查询的数据 List bk = db.Book.ToList(); dataGridView1.... 阅读全文