kemu1time
kemu2time
kemu3time
kemu4time
for ($i=1;$i<100;$i++)
{
$tmp = "kemu" . $i . "time";
$sql = "select sum( $tmp ) from zuoyeliang";
echo $sql.'<br>';
//....
//执行略
}
kemu2time
kemu3time
kemu4time
for ($i=1;$i<100;$i++)
{
$tmp = "kemu" . $i . "time";
$sql = "select sum( $tmp ) from zuoyeliang";
echo $sql.'<br>';
//....
//执行略
}
{
$sql = "select "."kemu".$i."time"." from zuoyeliang";
....
}
{
$sql = "select kemu".$i."time from zuoyeliang";
}2楼的也管kemu的后面与time的前面不能有空格!