參考原文地址：https://stackoverflow.com/questions/20276097/chrome-devtools-100-cpu
問題描述，chrome打開devtools開發者工具，就會特別耗用cpu和內存，內存使用量一直增加，直到電腦崩潰
解決辦法，打開開發者工具，找到source，切換到fileSystem，刪掉他下面的本地文件
然后就好了
stactoverflow上是這么說的：Strange, i've been struggling for days, and i found the solution right after asking here..
some days ago looking inside DevTools Settings -> Workspace i set a local folder.
now i have unset it and the CPU issue vanished!
good!
but can someone explain me what happened?
ok，perfect！