/// <summary>
/// 產(chǎn)生無重復(fù)隨機(jī)數(shù)
/// </summary>
/// <param name="num">個(gè)數(shù)</param>
/// <param name="minValue">最小數(shù)</param>
/// <param name="maxValue">最大數(shù)</param>
/// <returns>數(shù)組</returns>
public int[] getNum(int num, int minValue, int maxValue)
{
Random ra = new Random(unchecked((int)DateTime.Now.Ticks));
int[] arrNum = new int[num];//注意:數(shù)組中各元素的初始值是0,當(dāng)0在取值范圍內(nèi)時(shí)要另處理
int tmp = 0;
for (int i = 0; i < num; i++)
{
tmp = getRandomNum(tmp, minValue, maxValue, ra);//取出值賦到數(shù)組中

if (Array.IndexOf(arrNum, tmp) < 0)//判斷是否存在,不存在的話元素tmp的索引應(yīng)為-1
{
arrNum[i] = tmp;
}
else
{
i = i - 1;
}
}
return arrNum;
}
public int getRandomNum(int tmp, int minValue, int maxValue, Random ra)
{
tmp = ra.Next(minValue, maxValue);
return tmp;
}