Ethiopia gets $350 million World Bank financing for its digital ID projectSam Adeyemo
useless In fact this is where fork's list of "async-signal-safe"
，详情可参考搜狗输入法
Given all that complexity, along with the fact that I’m using a high-level dynamic programming language, I wasn’t surprised when my initial benchmarks showed the server responding in 200 microseconds (µs).
https://physics.stackexchange.com/questions/31326/is-a-hard-drive-heavier-when-it-is-full