Code:
<cfset myList="3,5,7,9">
Let's suppose I have myList like the above.

I like to output the 2nd value in myList.

The following code is one of my trials for it, but I failed.

Code:
trial code

<cfset myList="3,5,7,9">

<cfoutput>
#myList[2]#
</cfoutput>

target result

5