如果没有听众，System.Diagnostics.Trace 什么都不做吗？
Does System.Diagnostics.Trace do nothing is there are no listeners?
我希望能够在实时程序集中保留 Trace，但前提是跟踪是 NoOp。这与我不想向事件日志发送垃圾邮件的原因相同。
那么，如果我将详细的操作信息输出到 Trace 方法，如果我附加了跟踪侦听器，它们实际上只是 stored\collected 吗？
即它们不会被写入硬盘或存储在某个地方？
When using Trace, Debug and TraceSource, you must have a mechanism for collecting and recording the messages that are sent. Trace messages are received by listeners. The purpose of a listener is to collect, store, and route tracing messages. Listeners direct the tracing output to an appropriate target, such as a log, window, or text file.
所以当你没有监听器时，输出将不会存储在某个地方。
你可以这样做（这是 recommended way to configure tracing anyway) in configuration:
<system.diagnostics>
<trace>
<listeners>
<clear/>
<listeners>
</trace>
</system.diagnostics>
或来自代码：
System.Diagnostics.Trace.Listeners.Clear();
我希望能够在实时程序集中保留 Trace，但前提是跟踪是 NoOp。这与我不想向事件日志发送垃圾邮件的原因相同。
那么，如果我将详细的操作信息输出到 Trace 方法，如果我附加了跟踪侦听器，它们实际上只是 stored\collected 吗？
即它们不会被写入硬盘或存储在某个地方？
When using Trace, Debug and TraceSource, you must have a mechanism for collecting and recording the messages that are sent. Trace messages are received by listeners. The purpose of a listener is to collect, store, and route tracing messages. Listeners direct the tracing output to an appropriate target, such as a log, window, or text file.
所以当你没有监听器时，输出将不会存储在某个地方。
你可以这样做（这是 recommended way to configure tracing anyway) in configuration:
<system.diagnostics>
<trace>
<listeners>
<clear/>
<listeners>
</trace>
</system.diagnostics>
或来自代码：
System.Diagnostics.Trace.Listeners.Clear();