<?php
echo $m1 = memory_get_usage();
echo "<br />";
$var_string=123;
echo $m2 = memory_get_usage()-$m1;
echo "<br />";
$n=123;
echo $m3 = memory_get_usage()-$m1-$m2;
echo "<br />";
$f=123.00;
echo $m4 = memory_get_usage()-$m1-$m2-$m3;
echo "<br />";
$var_array=array("123");
echo $m5 = memory_get_usage()-$m1-$m2-$m3-$m4;
?>
这道题完全看不懂,是怎么运算的,比如$m2=?-? $var_string=123;是怎么参与计算的
echo $m1 = memory_get_usage();
echo "<br />";
$var_string=123;
echo $m2 = memory_get_usage()-$m1;
echo "<br />";
$n=123;
echo $m3 = memory_get_usage()-$m1-$m2;
echo "<br />";
$f=123.00;
echo $m4 = memory_get_usage()-$m1-$m2-$m3;
echo "<br />";
$var_array=array("123");
echo $m5 = memory_get_usage()-$m1-$m2-$m3-$m4;
?>
这道题完全看不懂,是怎么运算的,比如$m2=?-? $var_string=123;是怎么参与计算的
解决方案 »
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