源文件
......\听力播放
......\........\Form1.frm
......\........\Form1.frx
......\........\MSSCCPRJ.SCC
......\........\听力播放.vbp
......\........\听力播放.vbw
......\........\必修4
......\........\.....\unit1
......\........\.....\.....\测试1.mp3