Kotlin for loop: in、 until、 step、 downTo

fun loop1() {for (i in 0..5) {print("$i ")}println("\n1-end\n")}fun loop2() {for (i in 0 until 5) {print("$i ")}println("\n2-end\n")}fun loop3() {for (i in 0 until (5)) {print("$i ")}println("\n3-end\n")}fun loop4() {for (i in 0..5 step 2) {print("$i ")}println("\n4-end\n")}fun loop5() {for (i in 5 downTo 0) {print("$i ")}println("\n5-end\n")}fun main(args: Array) {loop1()loop2()loop3()loop4()loop5()}
0 1 2 3 4 5 1-end0 1 2 3 4 2-end0 1 2 3 4 3-end0 2 4 4-end5 4 3 2 1 0 5-end

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