Values in the random output array (asked by a friend of the garden)

1, random output of all values in the array (not duplicated)

Static voidMain (string[] args) {            int[] Array = {1,2,3,4,5 }; int[]str=New int[Array.          Length]; Random R=NewRandom ();  for(inti =0; I < array. Length; i++)          {              intindex =R.next (array.              Length); //determine if it already contains              if(str. Contains (Array[index])) {i--; Continue; } Str[i]=Array[index]; //output directly from the array, you can use the following for loop//Console.WriteLine (Str[i]);          }           for(intj =0; J < Str. Length; J + +) {Console.WriteLine (str[j]); } console.readkey ();

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The effect is as follows

2, the specified number in the random output array (not duplicated)

You just have to change the top slightly.

Static voidMain (string[] args) {            int[] Array = {1,2,3,4,5 }; int[]str=New int[3]; Random R=NewRandom ();  for(inti =0; I <3; i++)          {              intindex =R.next (array.              Length); //determine if it already contains              if(str. Contains (Array[index])) {i--; Continue; } Str[i]=Array[index]; //output directly from the array, you can use the following for loop//Console.WriteLine (Str[i]);          }           for(intj =0; J < Str. Length; J + +) {Console.WriteLine (str[j]); } console.readkey ();

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The effect is as follows

3, a value in the random output array (JavaScript version)

<! DOCTYPE html>var array = [1, 2, 3, 4, 5];         var index = Math.floor ((math.random () * array.length));        Alert (Array[index]);     </script>
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The effect is as follows
Values in the random output array (asked by a friend of the garden)