linux c 打印彩色字符

#include <stdio.h>
#include <string.h>

int main(int argc, char **argv)
{
    int i = 0, j = 0, str_len = 0;
    
    if (1 == argc)
    {
        printf("no argument\n");
        return -1;
    }

14　　　srand(time(NULL));
    for (i = 1; i < argc; i++)
    {
        str_len = strlen(argv[i]);
        for (j = 0; j < str_len; j++)
        {
            printf("\033[%dm%c", rand()%8+30, argv[i][j]);
        }
        printf(" ");
    }

    printf("\033[0m\n");

    return 0;
}

\033[0m 表示恢复默认