golang---性能优化

1. 问题

2. 参考

https://stephen.sh/posts/quick-go-performance-improvements
https://mp.weixin.qq.com/s/wXzGZlvF6fCXjcGFzG74Xw
https://mp.weixin.qq.com/s/-HojlxCZZIcWWwprQaVkzw