继承

src/class/Animal.kt

@@ -0,0 +1,24 @@
+package `class`
+
+/**
+ * 继承
+ *
+ *
+ */
+open class Animal(name: String, color: String, age: Int) {
+
+    private var name: String
+    private var color: String
+    private var age: Int = 0
+
+    // 初始化
+    init {
+        this.name = name
+        this.color = color
+        this.age = age
+    }
+
+    open fun say(): Unit {
+        println("name = $name,color = $color,age = $age")
+    }
+}

src/class/Cat.kt

@@ -0,0 +1,12 @@
+package `class`
+
+/**
+ * 继承
+ *
+ */
+class Cat(name: String, color: String, age: Int) : Animal(name, color, age) {
+}
+
+fun main(args: Array<String>) {
+    Cat("小猫","橘色",3).say()
+}