遍历就是了.int[][] arr = new int[3][3];//三行三列的二维数组int[] data = new int[arr[0].length];//new一个一维数组,长度是二维数组列的个数for(int i=0;i data[i]=arr[2][i];//赋值给一维数组}
char b[4][4]=........................;char [] a = b[2];
