如何在 InDesign 中获取选定文本后的第一个字符?

How can I get the first character after the selected text in InDesign?

我想在 indesign 中获取我所选文本周围的两个字符。

我可以在选择之前获取字符:

var myStory = app.selection[0].parentStory;
var myIndex = app.selection[0].index;

var myChar1 = myStory.characters[myIndex-1];

如何在选择后立即获取第一个字符?

我得到它来处理这个:

var myStory = app.selection[0].parentStory;
var myIndex = app.selection[0].index;

var toplam = app.selection[0].characters.length;

var myChar1 = myStory.characters[myIndex-1];
var myChar2 = myStory.characters[myIndex+toplam];