59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <time.h>
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#include <unistd.h>
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void *thread_T1(void *arg) {
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for (int i = 1; i <= 5; i++) {
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printf("My name is 吕锦中\n");
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if (i < 5) {
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int sleep_time = rand() % 5 + 1;
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sleep(sleep_time);
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}
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}
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return NULL;
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}
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void *thread_T2(void *arg) {
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for (int i = 1; i <= 5; i++) {
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printf("My student number is 2024414290124\n");
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if (i < 5) {
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int sleep_time = rand() % 5 + 1;
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sleep(sleep_time);
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}
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}
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return NULL;
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}
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void *thread_T3(void *arg) {
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for (int i = 1; i <= 5; i++) {
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time_t now = time(NULL);
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struct tm *tm_info = localtime(&now);
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char time_str[64];
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strftime(time_str, sizeof(time_str), "%Y-%m-%d %H:%M:%S", tm_info);
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printf("Current time %s\n", time_str);
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if (i < 5) {
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int sleep_time = rand() % 5 + 1;
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sleep(sleep_time);
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}
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}
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return NULL;
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}
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int main() {
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srand(time(NULL));
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pthread_t t1, t2, t3;
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pthread_create(&t1, NULL, thread_T1, NULL);
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pthread_create(&t2, NULL, thread_T2, NULL);
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pthread_create(&t3, NULL, thread_T3, NULL);
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pthread_join(t1, NULL);
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pthread_join(t2, NULL);
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pthread_join(t3, NULL);
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printf("All threads finished.\n");
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return 0;
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}
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