js对数值千分位处置的方法
日期：2014-05-16 浏览次数：20343 次
js对数值千分位处理的方法
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<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
</head>
<script type="text/javascript">
<!--
//--------------------------------------------
//删除千分点。
//--------------------------------------------
function removeComma(number) {
var num = number+"";
num = num.replace(new RegExp(",","g"),"");
if(/^[-+]?[0-9]+(\.[0-9]+)?$/.test(num)) {
return num;
} else {
return number;
}
}
//--------------------------------------------
//添加千分点。
//--------------------------------------------
function addKannma(number) {
var num = number + "";
num = num.replace(new RegExp(",","g"),"");
// 正负号处理
var symble = "";
if(/^([-+]).*$/.test(num)) {
symble = num.replace(/^([-+]).*$/,"$1");
num = num.replace(/^([-+])(.*)$/,"$2");
}
if(/^[0-9]+(\.[0-9]+)?$/.test(num)) {
var num = num.replace(new RegExp("^[0]+","g"),"");
if(/^\./.test(num)) {
num = "0" + num;
}
var decimal = num.replace(/^[0-9]+(\.[0-9]+)?$/,"$1");
var integer= num.replace(/^([0-9]+)(\.[0-9]+)?$/,"$1");
var re=/(\d+)(\d{3})/;
while(re.test(integer)){
integer = integer.replace(re,"$1,$2");
}
return symble + integer + decimal;
} else {
return number;
}
}
var i = 23423424.1232;
var si = addKannma(i);
var ii = removeComma(si);
alert(si);
alert(ii);
//-->
</script>
<body>
</body>
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