From 9fd540b8d78f5849ca073588d5635515af20860e Mon Sep 17 00:00:00 2001
From: Wentao Liu <wtracyliu@gmail.com>
Date: Fri, 12 Apr 2019 10:32:20 +0800
Subject: [PATCH] =?UTF-8?q?=E6=A0=A1=E5=AF=B9:=20chapter2/03=5FStrings=5Fa?=
 =?UTF-8?q?nd=5FCharacters=20=E6=96=B9=E6=B3=95=E5=90=8D=E5=8F=98=E5=8C=96?=
 =?UTF-8?q?=20(#921)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

index(of:) 已更名为: firstIndex(of:)
---
 source/chapter2/03_Strings_and_Characters.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/chapter2/03_Strings_and_Characters.md b/source/chapter2/03_Strings_and_Characters.md
index 06e3bf2f..21d5eca3 100755
--- a/source/chapter2/03_Strings_and_Characters.md
+++ b/source/chapter2/03_Strings_and_Characters.md
@@ -434,7 +434,7 @@ welcome.removeSubrange(range)
 
 ```swift
 let greeting = "Hello, world!"
-let index = greeting.index(of: ",") ?? greeting.endIndex
+let index = greeting.firstIndex(of: ",") ?? greeting.endIndex
 let beginning = greeting[..<index]
 // beginning 的值为 "Hello"