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