From d75c073dfac2b4b6848c41ac37a7dce5b491fab9 Mon Sep 17 00:00:00 2001
From: luming <lu.lm@bitsun-inc.com>
Date: Wed, 30 Jun 2021 17:13:20 +0800
Subject: [PATCH] map

---
 src/senior/Collection/CollectioMap.kt | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/senior/Collection/CollectioMap.kt b/src/senior/Collection/CollectioMap.kt
index 3035e97..9f2769e 100644
--- a/src/senior/Collection/CollectioMap.kt
+++ b/src/senior/Collection/CollectioMap.kt
@@ -4,7 +4,9 @@ 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)
-
+    m.forEach{
+        println("key = ${it.key}, value = ${it.value}")
+    }
     println(m.get("a"))
     // 可变map
     var map: MutableMap<String, String> = mutableMapOf()
@@ -12,5 +14,21 @@ fun main(args: Array<String>) {
     map.put("pig", "猪")
     println(map)
 
+    // 集合大小
+    println("map size = " + map.size)
+
     println(map.get("pig"))
+
+    // 获取所有的键
+    var keys = map.keys
+    println(keys)
+    // 获取所有的值
+    var values = map.values
+    println(values)
+
+    // 遍历map
+    var entries = map.entries
+    entries.forEach{
+        println("key = ${it.key},value = ${it.value}")
+    }
 }
\ No newline at end of file