解决方法:
修改C:users[用户名]下的.npmrc文件:
registry=https://registry.npm.taobao.org
sass-binary-site=https://npm.taobao.org/mirrors/node-sass
修改C:users[用户名]下的.npmrc文件:
registry=https://registry.npm.taobao.org
sass-binary-site=https://npm.taobao.org/mirrors/node-sass