/**
* 金额格式化
* @param s
* @param n
* @returns {String}
*/
function fmoney(s, n) {
n = n > 0 && n <= 20 ? n : 2;
s = parseFloat((s + "").replace(/[^\d\.-]/g, "")).toFixed(n) + "";
var l = s.split(".")[0].split("").reverse(), r = s.split(".")[1];
t = "";
for (i = 0; i < l.length; i++) {
t += l[i] + ((i + 1) % 3 == 0 && (i + 1) != l.length ? "," : "");
}
return t.split("").reverse().join("") + "." + r;
}
/**
* 只能输入数字和小数点
* @param obj
*/
function clearNoNum(obj) {
obj.value = obj.value.replace(/[^\d.]/g, ""); //清除“数字”和“.”以外的字符
obj.value = obj.value.replace(/^\./g, ""); //验证第一个字符是数字而不是.
obj.value = obj.value.replace(/\.{2,}/g, "."); //只保留第一个. 清除多余的.
obj.value = obj.value.replace(/^(\-)*(\d+)\.(\d\d).*$/, '$1$2.$3'); //只能输入两个小数
obj.value = obj.value.replace(".", "$#$").replace(/\./g, "").replace("$#$",".");
}
//匹配金额并且格式化
function matchMoney(obj) {
var stmp = "";
if (obj.value == stmp) {
return;
} else if (obj.value == ".") {
obj.value = "";
return;
}
var ms = obj.value.replace(/[^\d\.]/g, "").replace(/(\.\d{2}).+$/, "$1").replace(/^0+([1-9])/, "$1").replace(/^0+$/, "0");
var txt = ms.split(".");
while (/\d{4}(,|$)/.test(txt[0]))txt[0] = txt[0].replace(/(\d)(\d{3}(,|$))/, "$1,$2");
obj.value = stmp = txt[0] + (txt.length > 1 ? "." + txt[1] : "");
}