Kotlin语言编程Regex正则表达式实例详解

val regex = Regex(pattern = "Kot")
val matched = regex.containsMatchIn(input = "Kotlin")
运行结果：
matched = true

val regex = """a([bc]+)d?""".toRegex()
val matched1 = regex.matches(input = "xabcdy")
val matched2 = regex.matches(input = "abcd")
运行结果：
matched1 = false
matched2 = true

val phoneNumber :String? = Regex(pattern = """\d{3}-\d{3}-\d{4}""")
.find("phone: 123-456-7890, e..")?.value
结果打印：
123-456-7890

val foundResults = Regex("""\d+""").findAll("ab12cd34ef 56gh7 8i")
val result = StringBuilder()
for (text in foundResults) {
    result.append(text.value + " ")
}
运行结果：
12 34 56 7 8

val replaceWith = Regex("beautiful")
val resultString = replaceWith.replace("this picture is beautiful","awesome")
运行结果：
this picture is awesome