1.可播放wav,mp3等音樂類型. 2.多重音樂檔案選取功能,支持滑鼠檔案直接拖拉. 3.修正未選取歌曲時出現"Index Out Of Bounds(-1)". -1. Can play wav, mp3 and other music types .2. Multiple music files to select features, support mouse drag and drop files directly .3. The amendment did not sel