01 2019 档案

摘要：public List<Student> GetList() { string sql = "select * from Student"; using (conn = new SqlConnection(connectionstring)) { conn.Open(); List<Student> 阅读全文

摘要：int num;System.Text.StringBuilder str = new System.Text.StringBuilder(); //创建字符串str.Append(num.ToString()); //添加数值numResponse.Write(str.ToString); //显 阅读全文