如何替换Kotlin中所有出现的子字符串 [英] How to replace all occurrences of a sub string in kotlin

问题描述

如何用Kotlin中的其他内容替换字符串的一部分?

How to replace a part of a string with something else in Kotlin?

例如，通过将早上"替换为晚上"，将早上好"更改为晚安"

For example, changing "good morning" to "good night" by replacing "morning" with "night"

推荐答案

fun main(args: Array<String>) {
  var a = 1
  // simple name in template:
  val s1 = "a is $a" 

  a = 2
  // arbitrary expression in template:
  val s2 = "${s1.replace("is", "was")}, but now is $a"
  println(s2)
}

输出: a是1，但现在是2

OUPUT: a was 1, but now is 2

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