想在苹果手机上把几个短视频拼接成一个完整的长视频？其实操作比你想象中要简单得多！
你可以用 iPhone 自带的「iMovie」App，打开后新建项目 → 选择“影片” → 从相册里依次添加你想合并的视频片段，系统会自动按顺序拼接。调整顺序、删减片段、加点转场或背景音乐也很方便，完全不用电脑就能搞定。
不过如果你手头的素材特别多，或者希望更高效地处理——比如先从长视频里提取精华片段再合并，这时候可以试试「短影AI」。它虽然主打一键把长视频变多个爆款短视频，但它的视频分割、音频提取这些小工具也完全免费，还能本地运行不传数据，隐私很安心。万一你之后还想反向操作（比如把长内容快速拆成适合发抖音的小片段），它也能派上用场。
总之，日常简单拼接用 iMovie 足够；如果涉及更多素材整理或后续二次创作，像短影AI这类工具也能帮你省下不少时间。
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