Nodejs 无法连接ftp了么，


client.connect({
host:'127.0.0.1',
    port:'21',
    user:'test',
    password:'test'});


rror: Please login with USER and PASS.
    at makeError (C:\Users\30729\node_modules\ftp\lib\connection.js:1067:13)
    at Parser. (C:\Users\30729\node_modules\ftp\lib\connection.js:113:25)
    at Parser.emit (node:events:527:28)
    at Parser._write (C:\Users\30729\node_modules\ftp\lib\parser.js:59:10)
    at writeOrBuffer (node:internal/streams/writable:389:12)
    at _write (node:internal/streams/writable:330:10)
    at Parser.Writable.write (node:internal/streams/writable:334:10)
    at Socket.ondata (C:\Users\30729\node_modules\ftp\lib\connection.js:273:20)
    at Socket.emit (node:events:527:28)
    at addChunk (node:internal/streams/readable:315:12)
Emitted 'error' event on  instance at:
    at Object.reentry [as cb] (C:\Users\30729\node_modules\ftp\lib\connection.js:192:14)
    at Parser. (C:\Users\30729\node_modules\ftp\lib\connection.js:113:22)
    at Parser.emit (node:events:527:28)
    [... lines matching original stack trace ...]
    at addChunk (node:internal/streams/readable:315:12) {
  code: 530
}

参考GPT和自己的思路：

根据你提供的错误信息，可以看出连接ftp时出现了错误，错误信息显示需要使用USER和PASS进行登录。

根据代码可知，使用了client.connect来连接ftp，但是没有使用用户名和密码进行登录，因此出现了该错误。

可以使用下列代码进行登录：

client.connect({
    host:'127.0.0.1',
    port:'21',
    user:'your_username',
    password:'your_password'
});

将your_username和your_password替换为真实的用户名和密码即可。

如果仍然存在问题，可以检查ftp服务是否正常运行以及端口是否开放等。