Jul 9, 2018 - Explore Chitra Utami's board "songlist", followed by 30478 people on Pinterest. See more ideas about song playlist, song list, music mood. ... <看更多>

class SongList. MAX_TIME = 5*60. # 构造函数. def initialize. @songs = Array.new. end. # 添加曲目，返回列表. def append(song). @songs.push(song). ... <看更多>

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