vba 如何从 Visual Basic 中的数组中选择一个随机元素
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How to choose a random element from an array in Visual Basic
提问by ShuklaSannidhya
I have created an array of Integer and want to choose a random element from it. How do I do that?
我创建了一个整数数组，并想从中选择一个随机元素。我怎么做？
回答by beezir
YourArray(New Random().Next(0,YourArray.Length-1))
Or separated out for more clarity:
或者为了更清楚而分开：
Dim Rand as New Random()
Dim Index as Integer = Rand.Next(0, YourArray.Length - 1)
Dim SelectedValue = YourArray(Index)
回答by Tony Stark
Rnd can get [0,1),then mutiple Your arraylength, you can get number between [0,YourArrayLength)
Rnd 可以得到[0,1),那么multiple你的arraylength,你可以得到[0,YourArrayLength)之间的数
Randomize
Int(array.length* Rnd)
回答by dasblinkenlight
Make a random integer number in the range from 0to Len-1, where Lenis the length of your array. To make a random integer, use an instance of the Randomclass.
在从0到的范围内创建一个随机整数Len-1，其中Len是数组的长度。要生成随机整数，请使用Random类的实例。
DIM rand As New Random
DIM idx as rand.Next(0, Len)
REM Now you can pick an element idx from the array
REM to get a random element.
DIM res as myArray(index)
