并发 – “Go是一个并发的lang”这是什么意思？

Go is a concurrent language因为它有“goroutines”.

Concurrency

Go provides goroutines,small lightweight threads; the name alludes to coroutines. Goroutines are created with the go statement from anonymous or named functions.

Goroutines are executed in parallel with other goroutines,including their caller. They do not necessarily run in separate threads,but a group of goroutines are multiplexed onto multiple threads — execution control is moved between them by blocking them when sending or receiving messages over channels.