计算相差时间、时分秒

可以在Model 层直接计算出相差毫秒数

public double Duration
        {
            get
            {
                if (EndTime != null && StartTime != null)
                {
                    return EndTime.Value.Subtract(StartTime.Value).TotalSeconds;
                }
                else
                {
                    return 0;
                }
            }
        }

然后前台取到这个Duration字段

把他换算为时分秒

function UserTime(duration) {
        var theTime = parseInt(duration);// 秒
        var middle = 0;// 分
        var hour = 0;// 小时

        if (theTime > 60) {
            middle = parseInt(theTime / 60);
            theTime = parseInt(theTime % 60);
            if (middle > 60) {
                hour = parseInt(middle / 60);
                middle = parseInt(middle % 60);
            }
        }
        var result = "" + parseInt(theTime) + "秒";
        if (middle > 0) {
            result = "" + parseInt(middle) + "分" + result;
        }
        if (hour > 0) {
            result = "" + parseInt(hour) + "小时" + result;
        }
        return result;
    }