0
的我有以下代碼損失意義PHP一輪
$suma += round(1*43067.8000,2);
$suma += round(-1*18875.1800,2);
$suma += round(-1*15293.9700,2);
$suma += round(-1*8898.6500,2);
print $suma;
輸出是3.6379788070917E-12
爲什麼當數相加之前圓潤的答案是不爲0?
請參閱 - http://stackoverflow.com/questions/3726721/php-math-precision。 Round返回一個浮點數... – Buggabill 2013-05-13 19:13:30