参照文档http://docs.cocos.com/creator/manual/zh/advanced-topics/engine-customization.html定制引擎
npm install -g gulp出错
node版本v12.13.0
npm ERR! Unexpected end of JSON input while parsing near ‘…ent and future versio’
npm ERR! A complete log of this run can be found in:
npm ERR! /Users/leo/.npm/_logs/2019-10-29T09_27_25_375Z-debug.log