Would you please give me some guidance on how to style one character in a string at specific index? the index of this string comes from an array and in some cases the array is empty, so I only need to style the character in the string if the array is not emptyWould you please give me some guidance on how t
阅读背景：
如何在特定索引处对字符串中的字符进行样式设置？
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