1.mysqli_fetch_array(参数1,参数2);用关键字索引取值;MYSQLI_ASSOC返回关联数组; 2.mysqli_fetch_array(参数1,参数2);用数字索引取值;MYSQLI_NUM返回数字数组; 3.mysqli_fetch_row(参数1);用数字索引取值 4.mysqli_fetch_assoc(参数1);用关键字索引取值 最后还要提一个参数,mysqli_fetch_array(参数1,...