查了网站最后使用npm i安装成功，就是网络不好导致下载不成功，使用淘宝cnpm也安装不成功
Install fail! Error [ERR_STREAM_WRITE_AFTER_END]: write after end (writeStream "error") (writeStream "error"), GET https://cdn.npm.taobao.org/jointjs/-/jointjs-3.3.1.tgz 200 (connected: true, keepalive socket: false, agent status: {"createSocketCount":32,"createSocketErrorCount":0,"closeSocketCount":30,"errorSocketCount":0,"timeoutSocketCount":5,"requestCount":21,"freeSockets":{"registry.npm.taobao.org:443::::::::false::::::::::":1},"sockets":{"cdn.npm.taobao.org:443::::::::false::::::::::":1},"requests":{}}, socketHandledRequests: 1, socketHandledResponses: 1)
