function time(timestamp) {
    var date = getDate(timestamp * 1000);
    var Y = date.getFullYear() + '-';
    var M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1) + '-';
    var D = date.getDate() + ' ';
    return Y + M + D;
}

var filter = {
    getDateTime: function (value) {
        if (typeof value == 'string') {
            return value
        }
        //不能使用 new Date()
        var date = getDate(value * 1000);//时间戳为10位需*1000
        var Y = date.getFullYear() + '-';
        var M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1) + '-';
        var D = date.getDate() + ' ';
        return Y + M + D ;
    },
}

// 导出对外暴露的属性
module.exports = {
    time: time,
    getDateTime: filter.getDateTime
}