1、将目标文件“vodcache”，双击打开。
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https://iknow-pic.cdn.bcebos.com/9c16fdfaaf51f3de6b6f288a9aeef01f3b29797b"/>
2、打开任意一个文件，里面是".TDL"文件,需要把这些文件转化为”.mp4“文件，
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https://iknow-pic.cdn.bcebos.com/9e3df8dcd100baa1dfbed6554910b912c9fc2e49"/>
3、在电脑开始菜单的搜索栏输入“cmd”（只输入内容，引号勿输）
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https://iknow-pic.cdn.bcebos.com/b999a9014c086e0670efaea50c087bf40bd1cb9d"/>
4、按回车键，进入“cmd.exe”界面窗口，
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https://iknow-pic.cdn.bcebos.com/5fdf8db1cb134954e793798a584e9258d0094a4b"/>
5、再回到“我的电脑”，然后将文件复制在搜索框内，如图所示，
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https://iknow-pic.cdn.bcebos.com/9c16fdfaaf51f3de6a9c298a9aeef01f3a297936"/>
6、在“cmd.exe”窗口中输入命令符：“cd”(只输入cd即可，勿输“”，后面加一个空格)，点击鼠标右键将刚才复制的内容进行“粘贴”，最后按下“Enter”键，如图所示，
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https://iknow-pic.cdn.bcebos.com/730e0cf3d7ca7bcb9abb56c1b0096b63f724a818"/>
7、继续输入命令"d:"（只输入d:，因为现在演示的文件夹在d盘，所以输入“d:”,如果大家的指定文件夹在F盘，则输入“F:”）
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https://iknow-pic.cdn.bcebos.com/7acb0a46f21fbe09f88c52fa65600c338644ad0a"/>
8、输入完后按下“Enter”键，
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https://iknow-pic.cdn.bcebos.com/0824ab18972bd4071bd1431375899e510eb309cd"/>
9、输入转换命令“copy/B5*.tdlVideo001.mp4”，完成后按“Enter”键，最后就可以在文件夹中看到已经转化为以Video001为名的mp4视频啦。
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https://iknow-pic.cdn.bcebos.com/c9fcc3cec3fdfc038b447356da3f8794a4c2261b"/>
10、注意：在“copy/B”和“5*.tdl”之间有一个空格，“5*.tdl”和“Video001.mp4”之间也有一个空格。其中“5”是文件中的第一个字母，如果大家的文件以“a”开头的话，那么命令应该写为“copy/Ba*.tdlVideo001.mp4”。)
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https://iknow-pic.cdn.bcebos.com/86d6277f9e2f07084ecabbeee724b899a801f215"/>
11、如图所示的"Video001.mp4"即为转为的mp4视频。qlv格式转为MP4格式转换就完成啦！
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https://iknow-pic.cdn.bcebos.com/f703738da9773912e618158ff6198618367ae226"/>