生成随机数组特定的数字AS3 [英] generate random number from specific set of numbers as3

问题描述

我想创建具体的数字之间的随机数， 让说我有号码1,2,4,5,7,8,9，我想生成一个数字，这些具体的数字之间。可能吗？ 支付注意力放在该号码3和6的数量不应该在生成的数只有一个写入数应该在公式。 谢谢你。

i would like to create a random numbers between specific numbers, let say i have the numbers 1,2,4,5,7,8,9 and i want to generate a number between these specific numbers. is it possible? pay attension that the number 3 and the number 6 should not be in the generated numbers only one of the written numbers should be in the Equation. Thank you.

推荐答案

什么：

var arr:Array = [ 1,2,4,5,7,8,9 ];

var rand:Number = arr[ Math.floor( Math.random() * arr.length ) ];

trace( rand );

甚至更优雅的：

Or even more elegant:

var rand:Number = arr[ ( Math.random() * arr.length ) | 0 ];

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