Figure 7 shows the value for the trace log file path used in this example.

图7说明了本范例中的跟踪日志文件的路径。

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You can modify the default values for the properties, including the log file path and name, the log level, and the rolling log.

您可以修改属性默认值，包括日志文件路径和名称、日志级别和回滚日志。

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Next, create a variable called logfile and put in a path to a file (it doesn't need to exist yet) where you'll actually store log file messages.

接下来，创建一个logfile变量，并在文件中添加一个实际存储日志文件消息的路径(该文件不需要实际存在)。

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