如何在查询结果中选择一条记录？

Question

假如$result=mysql_query(......);$answer=mysql_fetch_object($result);
echo $answer->xxx; (xxx为字段名)
或
$answer=mysql_fetch_array($result);
echo $answer[x];  (x为下标，从零开始，顺序表示各个字段)

Answer 1

mysql_result($rs,$n,"perName")
//返回第$n-1個紀錄的perName字段的值

Answer 2

mysql_field_seek(int result, int field_offset)