原始数组
const int LENGTH = 3;
const int WIDTH = 10;
const int HEIGHT = 5;
int a1[LENGTH] = {1, 2, 3};
int a2[LENGTH][WIDTH]{};
int a3[LENGTH][WIDTH][HEIGHT]{};
通过列表进行初始化
const int LENGTH = 3;
const int WIDTH = 10;
const int HEIGHT = 5;
int a1[LENGTH] = {1, 2, 3};
int a2[LENGTH][WIDTH]{};
int a3[LENGTH][WIDTH][HEIGHT]{};
通过列表进行初始化