Method formatSize

music/music.ts:259–268

(bytes: number)

  }

  static formatDuration(seconds: number): string {
    const mins = Math.floor(seconds / 60);
    const secs = seconds % 60;
    return `${mins}:${secs.toString().padStart(2, "0")}`;
  }

  // 解析多种时长表示："mm:ss"、"hh:mm:ss"、"225"、"225s"、"3分45秒"
  static parseDuration(input: string): number | undefined {
    if (!input) return undefined;
    const txt = String(input).trim();

    // 纯数字（秒）或带 s 后缀
    const secNum = /^\d+(?:\.\d+)?s?$/i;