function GetDateDiff(startTime, endTime, diffType) {    //将xxxx-xx-xx的时间格式，转换为 xxxx/xx/xx的格式     startTime = startTime.replace(/\-/g, "/");    endTime = endTime.replace(/\-/g, "/");    //将计算间隔类性字符转换为小写    diffType = diffType.toLowerCase();    var sTime =new Date(startTime); //开始时间    var eTime =new Date(endTime); //结束时间    //作为除数的数字    var timeType =1;    switch (diffType) {        case"second":            timeType =1000;        break;        case"minute":            timeType =1000*60;        break;        case"hour":            timeType =1000*3600;        break;        case"day":            timeType =1000*3600*24;        break;        default:        break;    }    return parseInt((eTime.getTime() - sTime.getTime()) / parseInt(timeType));}GetDateDiff('2018/01/08 18:32:00','2018/01/08 22:13:00',"hour")

 

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