将数值四舍五入(保留2位小数)后格式化成金额形式

/** * 将数值四舍五入(保留2位小数)后格式化成金额形式 * * @param num 数值(Number或者String) * @return 金额格式的字符串,如'1,234,567.45' * @type String */function formatCurrency(num) {    num = num.toString().replace(/\$|\,/g,'');    if(isNaN(num))        num = "0";    sign = (num == (num = Math.abs(num)));    num = Math.floor(num*100+0.50000000001);    cents = num%100;    num = Math.floor(num/100).toString();    if(cents<10)    cents = "0" + cents;    for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)    num = num.substring(0,num.length-(4*i+3))+','+    num.substring(num.length-(4*i+3));    return (((sign)?'':'-') + num + '.' + cents);}

将数值四舍五入(保留1位小数)后格式化成金额形式

/** * 将数值四舍五入(保留1位小数)后格式化成金额形式 * * @param num 数值(Number或者String) * @return 金额格式的字符串,如'1,234,567.4' * @type String */function formatCurrencyTenThou(num) {    num = num.toString().replace(/\$|\,/g,'');    if(isNaN(num))    num = "0";    sign = (num == (num = Math.abs(num)));    num = Math.floor(num*10+0.50000000001);    cents = num%10;    num = Math.floor(num/10).toString();    for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)    num = num.substring(0,num.length-(4*i+3))+','+    num.substring(num.length-(4*i+3));    return (((sign)?'':'-') + num + '.' + cents);}

不保留小数

/** * 不保留小数 * * @param num 数值(Number或者String) * @return 金额格式的字符串,如'1,234,567.4' * @type String */function formatPrice(n) {    var t = parseInt(n), i, r;    for (t = t.toString().replace(/^(\d*)$/, "$1."), t = (t + "00").replace(/(\d*\.\d\d)\d*/, "$1"), t = t.replace(".", ","), i = /(\d)(\d{3},)/; i.test(t); )        t = t.replace(i, "$1,$2");    return t = t.replace(/,(\d\d)$/, ".$1"), r = t.split("."), r[1] == "00" && (t = r[0]), t}