From 8d0a87909eb9204c33a4c860d3728be5debf87d1 Mon Sep 17 00:00:00 2001
From: Phenmod <zhuxingcan@gmail.com>
Date: Wed, 30 Oct 2019 17:17:46 +0800
Subject: [PATCH] =?UTF-8?q?=E5=B0=91=E4=B8=80=E6=AE=B5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 source/01_welcome_to_swift/03_a_swift_tour.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/source/01_welcome_to_swift/03_a_swift_tour.md b/source/01_welcome_to_swift/03_a_swift_tour.md
index 8240ffc4..917ad358 100755
--- a/source/01_welcome_to_swift/03_a_swift_tour.md
+++ b/source/01_welcome_to_swift/03_a_swift_tour.md
@@ -87,6 +87,13 @@ var occupations = [
 occupations["Jayne"] = "Public Relations"
 ```
 
+数组在添加元素时会自动变大。
+
+```swift
+shoppingList.append("blue paint")
+print(shoppingList)
+```
+
 使用初始化语法来创建一个空数组或者空字典。
 
 ```swift