本质的数组, 只是每个元素都是指针
32位平台:
char *arr1[4]; short *arr2[4]; int *arr3[4]; sizeof(arr1); //16B sizeof(arr2); //16B sizeof(arr3); //16B
char *arr[4] = {"hehehehe", "xixixixix", "lalalala", "wuwuwuwu"};