Random.Sample 方法 [C#]示例 本例使用 Rnd 函数生成一个 1 到 6 之间的随机整数值。Dim MyValue As Integer MyValue = CInt(Int((6 * Rnd()) + 1)) ' Generate random value between 1 and 6.
private void button1_Click(object sender, EventArgs e) { Random x = new Random(); for(int i=0;i<7;i++) listBox1.Items.Add(x.Next(1,8)); } 我刚写的一小段代码,看你能不能用. private void button1_Click(object sender, EventArgs e) { Random x = new Random(); int[] arr = new int[7]; for (int i = 0; i < 7; i++) arr[i] = x.Next(1, 8); for (int i = 0; i < 7; i++) listBox1.Items.Add(arr[i]); }
洗牌算法: int i; for(int i=0;i<7;i++) { a[i]=i; } Random r = new Random(); for(i=0;i<7;i++) { int j=r.Next(i,7); temp = a[i]; a[i] = a[j]; a[j] = temp; }
我觉得可以先用一个容器存储1-7这七个数,比如数组,然后不断随机生成一个数,与该容器内的数比较,相等就剔除该数,同时把该数存入另一个数组中int[] becmp=new int[7]{0,0,0,0,0,0,0} int[] save=new int[7]{0,0,0,0,0,0,0} int i=0; do { Random r = new Random(); int j=r.Next(1,8);if(becmp[j-1]==0) { becmp[j-1]=1; save[i]=j; i++; } } while(i<7)
本例使用 Rnd 函数生成一个 1 到 6 之间的随机整数值。Dim MyValue As Integer
MyValue = CInt(Int((6 * Rnd()) + 1)) ' Generate random value between 1 and 6.
{
Random x = new Random(); for(int i=0;i<7;i++)
listBox1.Items.Add(x.Next(1,8));
}
我刚写的一小段代码,看你能不能用.
private void button1_Click(object sender, EventArgs e)
{
Random x = new Random();
int[] arr = new int[7]; for (int i = 0; i < 7; i++)
arr[i] = x.Next(1, 8); for (int i = 0; i < 7; i++)
listBox1.Items.Add(arr[i]);
}
int i;
for(int i=0;i<7;i++)
{
a[i]=i;
}
Random r = new Random();
for(i=0;i<7;i++)
{
int j=r.Next(i,7);
temp = a[i];
a[i] = a[j];
a[j] = temp;
}
int[] save=new int[7]{0,0,0,0,0,0,0}
int i=0;
do
{
Random r = new Random();
int j=r.Next(1,8);if(becmp[j-1]==0)
{
becmp[j-1]=1;
save[i]=j;
i++;
}
}
while(i<7)