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封装方法

//格式化日期yyyy-MM-dd-mm-ss-q-S  如date.Format("yyyy/dd")
    Date.prototype.Format = function(format)
    {
        var o = {
            "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+)/.test(format))
        {
            format = format.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
        }

        for (var k in o)
        {
            if (new RegExp("(" + k + ")").test(format))
            {
                format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] :
        ("00" + o[k]).substr(("" + o[k]).length));
            }
        }

        return format;
    }

//调用例子

var d = new Date();

var a = d.Format("yyyy年MM月dd日 hh:mm:ss")