安装任何包装时 纱线出错了
info There appears to be trouble with your network connection. Retrying...
我访问了它提供的https://registry.yarnpkg.com
{"db_name":"registry","doc_count":889991,"doc_del_count":342,"update_seq":11137048,"purge_seq":0,"compact_running":false,"disk_size":13042010533,"data_size":5649135494,"instance_start_time":"1527001930076866","disk_format_version":6,"committed_update_seq":11137047}
此外，npm正在提供
Error: tunneling socket could not be established, cause=connect
ECONNREFUSED 127.0.0.1:80
不使用代理