在golang中，学到channel时，往往都会产生一些疑惑，和channel的区别是什么？
以下就是区别：
| difference | channel | pipeline |
|---|---|---|
| structure | streams of a Go type | unstructured streams of bytes |
| platform | specific type in golang | unix Or unix like |
| buffer | Depending on the circumstances | always buffered |
| features | connected between goroutine | between two process(std.in/out) |
事实上，这两个东西区别还是挺大的，但是用处都很明确，就是通信