map集合

src/senior/Collection/CollectioMap.kt

@@ -0,0 +1,16 @@
+package senior.Collection
+
+fun main(args: Array<String>) {
+    // 不可变map
+    var m: Map<String, String> = mapOf("a" to "A", "b" to "B", "c" to "C")
+    println(m)
+
+    println(m.get("a"))
+    // 可变map
+    var map: MutableMap<String, String> = mutableMapOf()
+    map.put("cat", "猫")
+    map.put("pig", "猪")
+    println(map)
+
+    println(map.get("pig"))
+}