我有一个异常处理程序，每当出现错误时，它会向我们的帮助台软件发送电子邮件。邮件程序的所有属性都在app.config中处理。其中一个具有以下格式的属性 -> <add key="from" value="MATRIX@Exception.Handler"/>
有没有一种方法可以将值设置为 Environment.Username + @ourcompany.org。
顺便提一下，这是一款仅限于内部使用的应用程序。
使用宏模式。 将值设置为[User] @Exception.Handler，然后将其包装在辅助方法中。在帮助器中添加String.Replace（“[User]”，Environment.Username），然后就可以使用了。
始终将配置值包装在辅助方法中。这样可以将字符串转换为其他类型，检查无效值，替换默认值等。配置文件经常不正确或损坏，导致难以诊断的运行时错误。
This is not possible.
You will need to modify the code that reads the value.
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