代码： 

#include <iostream>
#include <signal.h>
#include <unistd.h>

using namespace std;

void catchSig(int signum)
{
    cout<< "进程捕捉到了一个信号，正在处理中： "<< signum << " pid: " << getpid() <<endl;
}

//typedef void (*catchSig) (int);

int main()
{

    while(true)
    {
        cout<< "我是一个进程，我正在运行..., Pid: " << getpid() <<endl;
        sleep(1);
        int a = 100;
        a /= 0;
        cout << "run here ...." << endl;
    }
}

Makefile:

signal:signal.cc
	g++ -o signal signal.cc -g


.PHONY:clean
clean:
	rm -f signal

运行结果：