DateDifference (faultDate, completeTime) {

var stime = new Date(faultDate).getTime()

var etime = new Date(completeTime).getTime()

var usedTime = etime - stime // 两个时间戳相差的毫秒数

var days = Math.floor(usedTime / (24 * 3600 * 1000))

// 计算出小时数

var leave1 = usedTime % (24 * 3600 * 1000) // 计算天数后剩余的毫秒数

var hours = Math.floor(leave1 / (3600 * 1000))

// 计算相差分钟数

var leave2 = leave1 % (3600 * 1000) // 计算小时数后剩余的毫秒数

var minutes = Math.floor(leave2 / (60 * 1000))

var time = days + '天' + hours + '时' + minutes + '分'

return time

}