For loop kotlin,如何动态更改for循环速度
有时,基于某些条件,它可能希望在for循环中跳转(或向前移动)几步 怎么做是科林 简化的用例:For loop kotlin,如何动态更改for循环速度,for-loop,kotlin,For Loop,Kotlin,有时,基于某些条件,它可能希望在for循环中跳转(或向前移动)几步 怎么做是科林 简化的用例: val datArray = arrayOf(1, 2, 3......) /** * start from the index to process some data, return how many data has been consumed */ fun processData_1(startIndex: Int) : Int { // process dataArra
val datArray = arrayOf(1, 2, 3......)
/**
* start from the index to process some data, return how many data has been
consumed
*/
fun processData_1(startIndex: Int) : Int {
// process dataArray starting from the index of startIndex
// return the data it has processed
}
fun processData_2(startIndex: Int) : Int {
// process dataArray starting from the index of startIndex
// return the data it has processed
}
在Java中,它可以是:
for (int i=0; i<datArray.lenght-1; i++) {
int processed = processData_1(i);
i += processed; // jump a few steps for those have been processed, then start 2nd process
if (i<datArray.lenght-1) {
processed = processData_2(i);
i += processed;
}
}
使用
而:
var i = 0
while (i < datArray.length - 1) {
var processed = processData_1(i)
i += processed // jump a few steps for those have been processed, then start 2nd process
if (i < datArray.length - 1) {
processed = processData_2(i)
i += processed
}
i++
}
var i=0
而(i
与一起,而:
var i = 0
while (i < datArray.length - 1) {
var processed = processData_1(i)
i += processed // jump a few steps for those have been processed, then start 2nd process
if (i < datArray.length - 1) {
processed = processData_2(i)
i += processed
}
i++
}
var i=0
而(i
您可以使用以下Kotlin文档中所述的继续执行此操作:
例如:
val names = arrayOf("james", "john", "jim", "jacob", "johan")
for (name in names) {
if(name.length <= 4) continue
println(name)
}
val name=arrayOf(“詹姆斯”、“约翰”、“吉姆”、“雅各布”、“约翰”)
用于(名称中的名称){
如果(name.length您可以按照Kotlin文档中的说明使用continue
:
例如:
val names = arrayOf("james", "john", "jim", "jacob", "johan")
for (name in names) {
if(name.length <= 4) continue
println(name)
}
val name=arrayOf(“詹姆斯”、“约翰”、“吉姆”、“雅各布”、“约翰”)
用于(名称中的名称){
如果(name.length)总是有好的旧而
…我认为手动更改计数器变量不是一个干净的解决方案,请使用while代替。总是有好的旧而
…我认为手动更改计数器变量不是一个干净的解决方案,请使用while代替