lambda

src/senior/Lambda/Senior.kt

@@ -0,0 +1,19 @@
+package senior.Lambda;
+
+fun main(args: Array<String>) {
+    var range = 1..100
+    println("被5整除的")
+    println(range.pickNum { x: Int -> x % 5 == 0 })
+    println("被10整除的")
+    println(range.pickNum { x: Int -> x % 10 == 0 })
+}
+
+fun IntRange.pickNum(function: (Int) -> Boolean): List<Int> {
+    val list: MutableList<Int> = mutableListOf();
+    for (i in this) {
+        if (function(i)) {
+            list.add(i)
+        }
+    }
+    return list
+}