网站建设模板制作,行业门户型网站制作,如何注册咨询公司,网站三层结构示意图问题#xff1a;编写程序完成如下功能#xff1a;程序创建2个线程#xff0c;然后#xff1a; 1 主线程先打印“I am main thread”#xff0c;然后睡眠2秒后#xff0c;打印main thread wake up,主线程退出 2 第一个新线程先打印“…问题编写程序完成如下功能程序创建2个线程然后 1 主线程先打印“I am main thread”然后睡眠2秒后打印main thread wake up,主线程退出 2 第一个新线程先打印“I am the first new thread”然后睡眠3秒后打印the first new thread wake up退出 3 第二个新线程先打印“I am the second new thread”然后睡眠5秒后打印the fsecond new thread wake up退出 要求能看到所有打印信息 代码
#include stdio.h
#include stdlib.h
#include unistd.h
#include unistd.h
#include pthread.h
#include assert.h
#include sys/types.h
#include sys/stat.h
#include fcntl.hvoid *fun1(){printf(I am the first new thread\n);sleep(3);printf(the first new thread wake up\n);return NULL;
}void *fun2(){printf(I am the second new thread\n);sleep(5);printf(the second new thread wake up\n);return NULL;
}int main(int argc,char *argv[]){pthread_t id[2];int ret 0;ret pthread_create(id[0],NULL,fun1,NULL); // thread1ret pthread_create(id[1],NULL,fun2,NULL); // thread2if(ret){printf(pthread_create failed\n);return 1;}printf(I am main thread\n); // main threadsleep(2);printf(main thread wake up\n);pthread_exit(NULL); // main thread exitpthread_join(id[0],NULL); // thread1 exitpthread_join(id[1],NULL); // thread2 exitreturn 0;
} 输出
