//格式化日期        Date.prototype.format = function(format) {        var date = {                "M+": this.getMonth() + 1,                "d+": this.getDate(),                "h+": this.getHours(),                "m+": this.getMinutes(),                "s+": this.getSeconds(),                "q+": Math.floor((this.getMonth() + 3) / 3),                "S+": this.getMilliseconds()        };        if (/(y+)/i.test(format)) {                format = format.replace(RegExp.$1, (this.getFullYear() + '').substr(4 - RegExp.$1.length));        }        for (var k in date) {                if (new RegExp("(" + k + ")").test(format)) {                        format = format.replace(RegExp.$1, RegExp.$1.length == 1                                ? date[k] : ("00" + date[k]).substr(("" + date[k]).length));                }        }        return format;        }

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