npm,yarn替換國外鏡像爲國內鏡像，安裝依賴

npm

• npm config set registry https://registry.npm.taobao.org
• npm config set sass_binary_site https://npm.taobao.org/mirrors/node-sass/
• npm install

yarn

• yarn config set registry https://registry.npm.taobao.org
• yarn config set sass_binary_site https://npm.taobao.org/mirrors/node-sass/
• yarn install