测速网址：https://speed.cloudflare.com/   生成测速文件： 1G测速文件

1
https://speed.cloudflare.com/__down?during=download&bytes=1073741824

10G测速文件

1
https://speed.cloudflare.com/__down?during=download&bytes=10737418240

  以此类推 2G后面改成2147483648 5G后面改成5368709120 100G后面改成107374182400   VPS测速

1
wget "https://speed.cloudflare.com/__down?during=download&bytes=10737418240"