JS保留两位小数例子

转载:http://hi.baidu.com/plg1986/blog/item/757c83cb9e68a98ac8176874.html

<html>
<head>
</head>
<script language="javascript">
document.write("<h1>JS保留两位小数例子</h1><br>");
   var a=2.1512131231231321;
   document.write("原来的值:"+a+"<br>");
   document.write("两位小数点:"+a.toFixed(2)+"<br>四位小数点"+a.toFixed(4));
</script>
<body>
</body>
</html>

php保留两位小数例子 四舍五入

1.number_format
$number = 1234.5678;
$nombre_format_francais = number_format($number, 2, ‘,’, ‘ ‘);
// 1 234,57
$english_format_number = number_format($number, 2, ‘.’, ”);
// 1234.57

2.round
$number = 1234.5678;
echo round($number ,2);
//1234.57

3.sprintf
$formatted = sprintf (“%s有¥%01.2f。”,$name, $money);
echo $formatted;

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