一.
Int[] arr = new int[]{1,2,3};
int[][] arr3 = new int[][]{{1,2,3},{11,22}};
arr = arr3 ; //编译报错
详情请看:https://www.bilibili.com/video/BV1Kb411W75N?p=162 9min左右的
一.
Int[] arr = new int[]{1,2,3};
int[][] arr3 = new int[][]{{1,2,3},{11,22}};
arr = arr3 ; //编译报错
详情请看:https://www.bilibili.com/video/BV1Kb411W75N?p=162 9min左右的