15.C语言多线程实现变色龙以及cmd窗口标题变化

#define _CRT_SECURE_NO_WARNINGS

#include <stdlib.h>
#include <stdio.h>
#include <Windows.h>
#include <process.h>
#include <time.h>

void title(void *p)
{
    char title[100];
    int i = 0;

    while (1)
    {
        sprintf(title, "title 程序已经运行了%d秒", i);
        system(title);
        i++;
        Sleep(1000);
    }

}

void color_change(void *p)
{
    char color[100];
    srand(time(0));
    while (1)
    {
        int num1 = rand() % 16;
        int num2 = rand() % 16;
        sprintf(color, "color %x%x", num1, num2);
        system(color);
        Sleep(1000);
    }
}

void main()
{
    _beginthread(title, 0, NULL);
    _beginthread(color_change, 0, NULL);
    

    system("pause");
}