他们执行额外的错误条件检查，并在发生错误时，他们援引的错误处理程序(见参数验证)。

They perform additional checks for error conditions, and in the case of an error, they invoke an error handler (see Parameter Validation).

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在下一次要使用这个远程连接时，只需作为ncftp的参数提供书签，见清单6。

The next time I want to use this remote connection I only need to supply the bookmark as part of the NCFTP parameter, as shown in Listing 6.

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sendRequest() 函数（见清单 9）将参数编码，打开请求，添加头部，当 async 为 true 时设置 Ajax 回调，并发送 HTTP 请求。

The sendRequest() function (see Listing 9) encodes the parameters, opens the request, adds the headers, sets the Ajax callback if async is true, and sends the HTTP request.

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