c# 가변 배열

1. 기본 배열

int [,] arr = new int[2,3];
int [,] arr = new int[2,3] {{1,2,3},{1,2,3}};
int [,] arr = {{1,2,3},{1,2,3}}

2. 가변 배열

int[][] arr = new int[2][]; 

arr[0] = new int[3];
arr[1] = new int[4];