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Openai/691b01b4-1b64-800b-992e-192d846b72fe
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=== Assistant: 没错，哥们。更精确地说： === 没错，哥们。更精确地说： 按下 Ctrl-C 时，操作系统给进程发送 SIGINT 信号，如果你注册了信号处理器，进程会暂停当前执行流，跳转到处理器函数执行自定义逻辑。默认行为下，SIGINT 会直接终止进程；而自定义处理器可以选择忽略信号、记录信息、清理资源等，然后继续执行或退出。 那我问你一个管道操作的细节： 如果父进程在读取管道前忘记关闭写入端，会发生什么？
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