（3）C语言基础，学习笔记(指针 )

void test_0() {

   int i = 258;
    int *ptr_i = &i;
    int  ptr_i3 = &i;

    printf("i= %p\n", i);
    printf("%p\n", &i);
    printf("ptr_i = %p\n", ptr_i);
    printf("*ptr_i = %p\n", *ptr_i);
    printf("ptr_i3 = %p\n", ptr_i3);
    printf("ptr_i 自己的地址=%p\n", &ptr_i);
    printf("int*的大小 =%d\n", sizeof(char *));
}

i= 0000000000000102
000000000022FE18
ptr_i = 000000000022FE18
*ptr_i = 0000000000000102
ptr_i3 = 000000000022FE18
ptr_i 自己的地址=000000000022FE10
int*的大小 =8