移动端页面监控input输入并且限制只输入2位小数

$(document).ready(function () {

           

            $("#money").bind("input propertychange", function () {

                var v = amount($(this).val());
                $(this).val(v);
                calculateExpect($(this).val(), curDetails.borrow_apr_rewrite, curDetails.borrow_period);
            });

        });

function amount(v) {
            var regStrs = [
                ["^0(\d+)$", "$1"], //禁止录入整数部分两位以上，但首位为0
                ["[^\d\.]+$", ""], //禁止录入任何非数字和点
                ["\.(\d?)\.+", ".$1"], //禁止录入两个以上的点
                ["^(\d+\.\d{2}).+", "$1"] //禁止录入小数点后两位以上
            ];
            for (i = 0; i < regStrs.length; i++) {
                var reg = new RegExp(regStrs[i][0]);
                v = v.replace(reg, regStrs[i][1]);
            }
            return v;
        }