/***@descript控件音视频文件量名空间卷* @friendoQaclices*#serview+Linkactions.VideoEdit.concate+VideoEdit.Concate基调视频提供视频时没有声音或带视频覆盖 * 确保只有基调视频播放*#@friendofquatics.vlue*/***@summary修饰符*@descripte百分率变化量(Range:-100至400)返回字符串++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++/***@summary修饰符*@descript增加或减少量friendoquates.vlue*exibels/decibels/康斯特卷={mute,byPercent,byDecibels}导出 {Volume, 哑音, byPercent, byDecibels};