Date.prototype.Format = function(formatStr) {    var str = formatStr;    var Week = ['日', '一', '二', '三', '四', '五', '六'];    str = str.replace(/yyyy|YYYY/, this.getFullYear());    str = str.replace(/yy|YY/, (this.getYear() % 100) > 9 ? (this.getYear() % 100).toString() : '0' + (this.getYear() % 100));    str = str.replace(/MM/, (this.getMonth() + 1) > 9 ? (this.getMonth() + 1).toString() : '0' + (this.getMonth() + 1));    str = str.replace(/M/g, (this.getMonth() + 1));    str = str.replace(/w|W/g, Week[this.getDay()]);    str = str.replace(/dd|DD/, this.getDate() > 9 ? this.getDate().toString() : '0' + this.getDate());    str = str.replace(/d|D/g, this.getDate());    str = str.replace(/hh|HH/, this.getHours() > 9 ? this.getHours().toString() : '0' + this.getHours());    str = str.replace(/h|H/g, this.getHours());    str = str.replace(/mm/, this.getMinutes() > 9 ? this.getMinutes().toString() : '0' + this.getMinutes());    str = str.replace(/m/g, this.getMinutes());    str = str.replace(/ss/, this.getSeconds() > 9 ? this.getSeconds().toString() : '0' + this.getSeconds());    str = str.replace(/s/g, this.getSeconds());    str = str.replace(/S/,this.getMilliseconds());    return str}console.log(new Date().Format("yy-M-d h:m:s:S w"));