字符数组与与指针保存字符串区别

#include <stdio.h>
int main(int argc, char **argv)
{
        char str[] = "gyu";
        //charr*str = "gg"
        printf("str address is %p\n", str);
        fun(&str);
        printf("main -- %s p is %p\n", str, (unsigned int *)str);
        fun1(&str);
        printf("-----%s\n", *(argv+2));
        printf("main -- %s\n", str);
}

int fun(char **str)
{
        *str = "1234";
        printf("FILE %s---LINE %d---%s--p is %p\n",__FILE__,__LINE__,*str, *str);
}

int fun1(char **str)
{
                *str = "kkkk";
                printf("---%s\n",*str);
                printf("FILE %s---LINE %d---\n",__FILE__,__LINE__);
}