29 lines
796 B
C
29 lines
796 B
C
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#include <pthread.h>
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#include <stdio.h>
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#include <unistd.h>
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#define NUM_THREADS 5 //线程个数
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void *say_hello(void *args)
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{
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printf("Hello Runoob！\n");
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sleep(2);
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}
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int main()
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{
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//定义线程的 id 变量，多个变量使用数组
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pthread_t tids[NUM_THREADS];
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for (int i = 0; i < NUM_THREADS; ++i) {
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sleep(2);
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//参数依次是：创建的线程id，线程参数，调用的函数，传入的函数参数
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int ret = pthread_create(&tids[i], NULL, say_hello, NULL);
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if (ret != 0) {
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printf("pthread_create error: error_code = %d\n", ret);
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}
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}
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//等各个线程退出后，进程才结束，否则进程强制结束了，线程可能还没反应过来；
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pthread_exit(NULL);
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}
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//g++ test.cpp -lpthread -o test
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