swapfun.java

一款少见的用swt写的彩票软件

package com.dc.test;

public class SwapFun {
	private static int N = 10;

	private static int a[] = new int[N];

	private static int b[] = new int[N];

	public static int used[] = new int[N];

	public static void fun(int pos) {//list[]，数组。k:扫描号。n:总数。m:选取个数。   
		int i;
		int r = 3;

		if (pos == r) {
			for (i = 0; i < r; i++) {
				System.out.println(b[i] + ",");
			}
			System.out.println();
		} else {
			for (i = 0; i < N; i++) {
				if (used[i] != 0) {
					b[pos] = a[i];
					used[i]++;
					fun(pos + 1);
					used[i]--;
				}

			}
		}
	}

	public static void main(String[] args) {
		int list[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };//因为第1个元素从list[1]开始。   
		fun(0);
	}

}