Question

我正在制作一个WP7应用程序，当用户点击图像时，会随机决定他们会得到什么。

现在，我有这个代码：

string firstdoor = "";

string seconddoor = "";

string thirddoor = "";

和

string prize1 = "vacation to Hawaii with all expenses covered";

string prize2 = "used glue stick";

string prize3 = "pile of dog dung";

string prize3 = "vacation to Europe with all expenses covered";

string prize3 = "million dollars";

string prize3 = "blank CD";

string prize3 = "temporary tattoo";

string prize3 = "nickel";

string prize3 = "dime";

和

我想要做的是将door随机分配给prize。

例如，当用户点按图片时，dime被分配到thirddoor，nickel被分配到第一门，million dollars被分配给secondoor。

Answer 1

这些步骤对我来说似乎最有意义（不会为你编写所有代码）：

将所有奖品串放在一个数组中。
在0和最大奖金数之间生成三个随机数。
使用每个随机数从奖品阵列中为每个门分配奖品。
...
利润！

修改

实际上，这里有一些代码可以提供帮助：

var randomGenerator = new Random(); string[] prizes = { "vacation to Hawaii with all expenses covered", "used glue stick", "pile of dog dung", "vacation to Europe with all expenses covered" }; string firstDoor = prizes[randomGenerator.Next(prizes.Length)]; string secondDoor = prizes[randomGenerator.Next(prizes.Length)]; string thirdDoor = prizes[randomGenerator.Next(prizes.Length)];

Answer 2

假设您不想重复任何奖品，解决方案会稍微复杂一些，但您可以带一些Linq和一些随机玩的小技巧：

    var prizes = new string[] {
        "vacation to Hawaii with all expenses covered",
        "used glue stick",
        // etc
        "dime"            
    };

    var rand = new Random();

    var result = (from prize in prizes
                  orderby rand.NextDouble()
                  select prize).Take(3).ToArray();

Answer 3

贾斯汀，你的回答很好，但可能会导致2个门获得相同的奖金。我相信这可能会更好：

string[] prizes = new string[]
        {
            "Prize 1",
            "Prize 2",
            "Prize 3",
            "Prize 4",
            "Prize 5"
        };

        Random r = new Random();
        var choices = prizes.OrderBy(x => r.Next()).Take(3).ToArray();

        string firstDoor = choices[0];
        string secondDoor = choices[1];
        string thirdDoor = choices[2];

在C＃中为WP7选择一个随机字符串

3 个答案: