电脑合成视频的方法：
1、电脑中同样也有专业的迅捷视频转换器，下载视频软件后，点击「合并视频」按钮。
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2、通过点击「添加文件」或者
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3、按钮将需要合成的视频添加。
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4、添加完成后，点击「合并视频」按钮。
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5、接下来还可以点击「编辑」图标按钮设置合并视频的输出格式。
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6、然后选择合并视频的保存目录，默认是原文件夹，可点击「浏览」按钮自主选择其他文件夹。
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7、最后点击「开始转换」按钮，视频就会开始合成了。
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8、视频合成完毕后，可以点击「打开」按钮直接将合成后的视频打开。
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