#include <iostream>
#include <cstring>
#include <stdio.h>
#include <unistd.h>
using namespace std;
int main() {
pid_t pid;
int num = 888;
// fork返回两次(父进程-返回-子进程id、子进程-返回-0)
pid = fork();
if (pid == 0) {
cout << "这是一个子进程." << endl;
cout << "子进程打印 num: " << num << endl;
while (true) {
num += 1;
cout << "子进程打印 循环num: " << numm << endl;
sleep(1);
}
} else if (pid > 0) {
cout << "这身一个父进程." << endl;
cout << "父进程打印 子进程id: " << pid << endl;
cout << "父进程打印 num: " << num << endl;
while (true) {
num -= 1;
cout << "父进程打印 循环num: " << numm << endl;
sleep(1);
}
} else {
cout << "创建进程失败." << endl;
}
return 0;
}
c++开子进程
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转载自blog.csdn.net/echo_Ae/article/details/103486178
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