数组赋值

public class Demo {

	public int count = 0;
	public int total = 0;
	public int num = 0;
	public int [][] args;
	/**
	 * 1  2  3  4 
	 * 12 13 14 5
	 * 11 16 15 6
	 * 10 9  8  7
	 * 
	 */
	public Demo(int num){
		args = new int [num][num];
		total = num*num;
		process(0, 0, num, 0);
	}

	private void process(int x, int y, int next, int times) {
		// x+
		for (int i = next; i > 0; i--) {
			if(count !=0 && total == count ){
				return;
			}

			args[x][y] = ++count;
			if((x-times) < (next -1)){
				x++;
			}
		}
		// y+
		for (int i = next -1; i > 0; i--) {
			if(count !=0 && total == count ){
				return;
			}
			if((y -times) < (next -1)){
				y++;
			}
			args[x][y] = ++count;
		}
		// x-
		for (int i = next -1; i > 0; i--) {
			if(count !=0 && total == count ){
				return;
			}
			x --;
			args[x][y] = ++count;
		}
		// y-
		for (int i = next -2; i > 0; i--) {
			if(count !=0 && total == count ){
				return;
			}
			y --;
			args[x][y] = ++count;
		}
		if(count !=0 && total == count ){
			return;
		}else{
			process(x+1,y,next-2, times+1);
		}

	}
	public static void main(String[] args) {
		new Demo(2);
	}
}