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小技巧:让 Google 帮你算算传输大文件要多久


MOPy

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Google 的计算器 onebox 可以干很多事情,甚至可以帮我们计算传输文件要多久,比如你要通过 Fire800 传输 500G 的文件,那么理论上需要多少时间呢?在 Google 搜索框中输入

就可以看到预计传输时间了,如果考虑到实际传输速度不可能达到理论值的话,加上一个 0.8 的误差系数是个很好的主意,也就是

另外这个技巧更有用的地方是用来计算大文件下载时间,比如我的 4M 网络接入要下载一个 4.7G 的 DVD 镜像文件需要:

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