You can use this to follow the output in an error log, for example, to see what errors are appearing as they're written to the log.
您可以使用该选项接着显示错误日志中的输出，例如，要在将错误写入到日志的同时查看这些错误。
The model is then validated and any errors or warnings are shown in the error log.
然后验证模型，在错误日志中显示出任何的错误或警告。
Maybe you just want to keep an archive of the log file that was a success or email a copy of the error log in the event of a problem.
您可能会只想保存成功的日志文件的存档，或在出现问题时将错误日志的副本以电子邮件方式发送出去。
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