谁帮我看下分配指针数组时 释放（free无法释放，卡在）
程序代码：int my_memcmp(char *str1, char *str2)
{
for (int s1 = 0; *(str1 + s1); s1++)
if (*(str1 + s1) > *(str2 + s1)) return 1;
else if (*(str1 + s1) < *(str2 + s1)) return -1;
return 0;
}
void sort_char(char *p_char[N],int n)
{
printf("%d\n", my_memcmp(p_char[0], p_char[1]));
}
int main()
{
char *p_char[N] = { NULL };
for (int i = 0; i < N; i++)
{
p_char[i] = (char *)malloc(sizeof(char) * N*N);
if (p_char[i] == NULL)
{
printf("Allocate memory failure\n");
exit(1);
}
scanf("%s", p_char[i]);
}
sort_char(p_char, N);
for (int i = 0; i < N; i++)
{
free(p_char[i]);
p_char[i] = NULL;
}
system("pause");
return 0;
}
