关于const *和 * const

int main() {
    int i = 0;
    int j = 0;
    int const *p = &i;
    p = &j;
    *p = 10;                    //错误，*p的值被const修饰，为只读变量，不可更改
    int * const q = &i;
    *q = 10;
    q = &j;                    //错误，q的值被const修饰，为只读变量，不可更改

    return 0;
}