toCharArray(),相当于java的toCharArray()
/**
* 字符串转化为字符数组 toCharArray(),相当于java的toCharArray()
*/
val str:String = "Hello"
val chars = str.toCharArray()
for (i in 0 until chars.size){
println("i: " + i + ", ch: " + chars[i])
}
String(array),相当于Java的String.valueOf(array)
/**
* 字符数组转化为字符串 String(array),相当于Java的String.valueOf(array)
*/
val array1:CharArray = charArrayOf('a','b','c')
println(String(array1))
val n:Int = 10
/**
* for循环中,0..n表示从0到n
*/
for (i in 0..n){
println(i)
}
val n:Int = 10
/**
* for循环中,0 until n表示从0到n-1
*/
for (i in 0 until n){
println(i)
}
使用for-each
val words:Array<String> = arrayOf("a", "bb", "acd", "ace")
for (word:String in words) {
println(word)
}
val result: IntArray = IntArray(len)
val arrA = intArrayOf(12, 28, 46, 32, 50)
val words:Array<String> = arrayOf("a", "bb", "acd", "ace")