node 报错

Starting child process with 'node web.js'events.js:183      throw er; // Unhandled 'error' event      ^Error: listen EADDRINUSE :::8000    at Object._errnoException (util.js:992:11)    at _exceptionWithHostPort (util.js:1014:20)    at Server.setupListenHandle [as _listen2] (net.js:1355:14)    at listenInCluster (net.js:1396:12)    at Server.listen (net.js:1480:7)    at Object.
    
      (C:\Users\Administrator\Desktop\node\node练习\解决异步\web.js:39:4)    at Module._compile (module.js:652:30)    at Object.Module._extensions..js (module.js:663:10)    at Module.load (module.js:565:32)    at tryModuleLoad (module.js:505:12)Program node web.js exited with code 1
    

错误原因：

端口号被占用。

解决方法：

修改端口号，或者干掉端口号，重新启动项目

干掉端口号方法：

1.进入cmd命令窗口，写netstat -ano|findstr "8080"

2.taskkill -PID 13512 -F