1.以时/分/秒为单位设定倒计时范围。

2.在倒计时过程中可以停止。

3.设定的时间到时弹出窗口提示并播放音乐，可在提示窗口里选择是否停止音乐或者听完整首歌。

4.音乐可以自己换，但只支持.au格式的，替换文件夹中的trav.au，替换的歌曲文件的名字也应当改为trav.au-1 to hours/minutes/seconds to set the countdown range. (2) the process can stop the countdown. 3 Set the time to pop-up window prompts and music, in the prompt window, choose whether to stop the music or listen to full songs. 4-for-yourself music, but only supports. Au format, replace folder trav.au, replace the name of the song files should be changed to trav.au