从npm升级到yarn

安装yarn

1	npm install -g yarn

1	yarn config set registry 'https://registry.npm.taobao.org'

1 2	npm init yarn init

1 2	npm install yarn或yarn install

1 2	npm install xxx --save yarn add xxx -S

1 2	npm install xxx --save-dev yarn add xxx -D

1 2	npm uninstall xxx --save yarn remove xxx

1 2	npm update --save xxx yarn upgrade xxx

1 2	npm install -g xxx yarn global add xxx

1 2	npm run xxx yarn run xxx

1 2	npm publish/login/logout yarn publish/login/logout