linux中的fork函数的基本用法

 1 #include <iostream> 
 2 #include <string>
 3 #include <cstdio>
 4 #include <unistd.h>
 5 #include <sys/wait.h>
 6 
 7 using namespace std; 
 8 
 9 int main(int argc,char* argv[]){
10 
11     pid_t pid;
12     for(int i = 0; i < 1; i++){
13         cout<<"fork!";
14         pid = fork();
15         if(pid == 0){
16             cout<<"I am child, my pid is "<<getpid()<<endl;
17         }else{
18             cout<<"I am father, my pid is "<<getpid()<<endl;
19             wait(NULL);
20         }
21     }
22     
23     return 0;
24 }

cout<<"fork!"<<endl;