從名稱數組中隨機選取的樣本名稱生成器

Question

是否有一個linq隨機選擇器從名稱數組中隨機選擇？

var randomname = {"Jess", "Jay", "Jen", "Jack", "Jan"}.select(a => a.random()); 

Answer 1

簡單，只需使用一個隨機數生成器，並通過它進行排序：

Random rnd = new Random(); 
var randomname = {"Jess", "Jay", "Jen", "Jack", "Jan"}.OrderBy(a => rnd.NextDouble()).First(); 

Answer 2

無需LINQ這裏。只要使用Random.Next有上限和下限：

string[] items = { "Jess", "Jay", "Jen", "Jack", "Jan" }; 
Random r = new Random(); 

int index = r.Next(0, items.Length); 
string randomItem = items[index]; 

例子：http://dotnetfiddle.net/EiRwGl

Answer 3

您可以使用.skip

Random rand = new Random(); 
int toSkip = rand.Next(0, randomname.Count ); 
randomname.Skip(toSkip).Take(1).First(); //Or without linq a randomname[toSkipe];