web前端|js教程
asp,数值,格式化
web前端-js教程
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//--------------------------------------------
// 删除千分点。
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//--------------------------------------------
function removeComma(number) {
var num = number.replace(new RegExp(",","g"),"");
if(/^[-+]?[0-9]+(\.[0-9]+)?$/.test(num)) {
return num;
} else {
return number;
}
}
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//--------------------------------------------
//添加千分点。
//--------------------------------------------
function addKannma(number) {
var num = number.replace(new RegExp(",","g"),"");
// 正负号处理
var symble = "";
if(/^([-+]).*$/.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;
}
}
