function formatTime(timestamp, format) {

　　const formateArr = ['Y', 'M', 'D', 'h', 'm', 's'];

　　let returnArr = [];

　　let date = new Date(timestamp); //13位的时间戳,    如果不是13位的,  就要乘1000,就像这样 let date = new Date(timestamp*1000)

　　let year = date.getFullYear()

　　let month = date.getMonth() + 1

　　let day = date.getDate()

　　let hour = date.getHours()

　　let minute = date.getMinutes()

　　let second = date.getSeconds()

　　returnArr.push(year, month, day, hour, minute, second);

　　returnArr = returnArr.map(formatNumber);

　　for (var i in returnArr) {

　　format = format.replace(formateArr[i], returnArr[i]);

}

　　return format;

}

const formatNumber = n => {

　　n = n.toString()

　　return n[1] ? n : '0' + n

}

module.exports = {

　　formatTime: formatTime

}