多线程问题:https://www.jianshu.com/p/6f63b87ba6f0 ibm多线程实战:https://www.ibm.com/developerworks/cn/opensource/os-cn-nodejs-practice/index.html 子程序问题:https://blog.youkuaiyun.com/liangklfang/article/details/51125108 cluster:http://taobaofed.org/blog/2015/11/03/nodejs-cluster/ http://taobaofed.org/blog/2015/11/10/nodejs-cluster-2/