From 9fd8ea55fa2cc9a0a473481894cffe500c4b2afe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9E=81=E5=AE=A2=E5=AD=A6=E4=BC=9F?= <qxuewei@yeah.net>
Date: Mon, 29 Nov 2021 14:07:20 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=201047.=20=E5=88=A0=E9=99=A4?=
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---
 ...删除字符串中的所有相邻重复项.md | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/problems/1047.删除字符串中的所有相邻重复项.md b/problems/1047.删除字符串中的所有相邻重复项.md
index 66f34978..e43ab59f 100644
--- a/problems/1047.删除字符串中的所有相邻重复项.md
+++ b/problems/1047.删除字符串中的所有相邻重复项.md
@@ -319,6 +319,22 @@ char * removeDuplicates(char * s){
 }
 ```
 
+Swift：
+```swift
+func removeDuplicates(_ s: String) -> String {
+    let array = Array(s)
+    var stack = [Character]()
+    for c in array {
+        let last: Character? = stack.last
+        if stack.isEmpty || last != c {
+            stack.append(c)
+        } else {
+            stack.removeLast()
+        }
+    }
+    return String(stack)
+}
+```
 
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 <div align="center"><img src=https://code-thinking.cdn.bcebos.com/pics/01二维码一.jpg width=500> </img></div>