linux 打印 线程号

#include <pthread.h>
#include <stdio.h>

void* thread_func(void* arg) {
    pthread_t tid = pthread_self();
    printf("Thread ID: %lu
", (unsigned long)tid);
    return NULL;
}

int main() {
    pthread_t thread;
    pthread_create(&thread, NULL, thread_func, NULL);
    pthread_join(thread, NULL);
    return 0;
}

#include <stdio.h>
#include <unistd.h>

void* thread_func(void* arg) {
    pid_t tid = gettid();
    printf("Thread ID: %d
", tid);
    return NULL;
}

int main() {
    pthread_t thread;
    pthread_create(&thread, NULL, thread_func, NULL);
    pthread_join(thread, NULL);
    return 0;
}