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图4-14交流论坛界面图, flag) {return typeof patternLetters[flag] === 'function' ? patternLetters[flag](date) :patternLetters[flag] in patternLetters ? creatNewSubString(<零距离_句子>, patternLetters[flag]) :date[patternLetters[flag]]()})},// 生成一个随机的 Date 对象。_randomDate: function(min, max) { // min, maxmin = min === undefined ? new Date(0) : minmax = max === undefined ? new Date() : maxreturn new Date(Math.random() * (max.getTime() - min.getTime()))},// 返回一个随机的日期字符串。date: function(format) {format = format || 'yyyy-MM-dd'return this._formatDate(this._randomDate(), format)},// 返回一个随机的时间字符串。time: function(format) {format = format || 'HH:mm:ss'return this._formatDate(this._randomDate(), format)},// 返回一个随机的日期和时间字符串。datetime: function(format) {format = format || 'yyyy-MM-dd HH:mm:ss'return this._formatDate(this._randomDate(), format)},// 返回当前的日期和时间字符串。now: function(unit, format) {// now(unit) now(format)if (arguments.length === 1) {// now(format)if (!/year|month|day|hour|minute|second|week/.test(unit)) {format = unitunit = ''}}unit = (unit || '').toLowerCase()format = format || 'yyyy-MM-dd HH:mm:ss'var date = new Date()/* jshint -W086 */// 参考自 http://momentjs.cn/docs/#/manipulating/start-of/switch (unit) {case 'year':date.setMonth(0)case 'month':date.setDate(1)case 'week':case 'day':date.setHours(0)case 'hour':date.setMinutes(0)case 'minute':date.setSeconds(0)case 'second':date.setMilliseconds(0)}switch (unit) {case 'week':date.setDate(date.getDate() - date.getDay())}return this._formatDate(date, format)}}/***/ },">