(转)String with Kotlin

原地址:String with Kotlin_dpl12的博客-CSDN博客

kotlin中字符串的使用........

fun main(args: Array<String>) {
    val str="May the force be with you"
    println(str)
    
    val rawCrawl="""|hellooooooooooooo
    |A long time ago,
    |far,far,far...
    |bommmmm mmmmmm mmmmmm""".trimMargin()  //去除字符|前的空格
    println(rawCrawl)
    
    val contentEqual=str.contentEquals("May the force be with you")//字符串比较函数
    println(contentEqual)//true
    
    val contains=str.contains("with",true)//对字符串中是否具有“with”做出判断
    println(contains)//true
    
    val uppercase=str.toUpperCase()//字符串中字母转换成大写
    val lower=str.toLowerCase()//字符串中字母转换成小写、
    println(uppercase+lower)
    
    val subSequence=str.subSequence(4,13)//获取字符串中字母区间
    println(subSequence)
    
    val name="dpl"
    println("My name is $name")//EL表达式
}
运行结果:

May the force be with you
hellooooooooooooo
A long time ago,
far,far,far...
bommmmm mmmmmm mmmmmm
true
true
MAY THE FORCE BE WITH YOUmay the force be with you
the force

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转载自blog.csdn.net/duyiqun/article/details/120488599