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HomeJavaHow to convert hex codes to standard characters in Kotlin

php小编柚子为您介绍如何在 Kotlin 中将十六进制代码转换为标准字符。在编程中,有时我们需要将十六进制代码转换为相应的字符,以便进行进一步的处理或展示。在 Kotlin 中,可以使用一些简单的方法来实现这个转换过程。本文将详细介绍如何使用 Kotlin 的内置函数和扩展函数来完成这个任务,让您轻松处理十六进制代码。让我们一起来看看吧!

问题内容

我有一个字符串“Build \x26 sell”,我需要以某种方式将这个特定的“&”或任何其他十六进制代码替换为标准字符。有没有简单的函数可以实现这个功能?谢谢

解决方法

您可以创建自己的函数:)

fun hexToAscii(hexStr: String): String {

    val startOfHex = hexStr.indexOf("\\x")
    val substring = hexStr.substring(startOfHex, startOfHex + 4)
    val regString = substring.substring(2, 4).toInt(16).toChar().toString()
    val res = hexStr.replaceFirst(substring, regString, false)
    if (res.contains("\\x")) {
        return hexToAscii(res)
    }
    return res
}

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