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-rw-r--r--zh-cn/swift-cn.html.markdown2
1 files changed, 1 insertions, 1 deletions
diff --git a/zh-cn/swift-cn.html.markdown b/zh-cn/swift-cn.html.markdown
index 017a7812..cba9252d 100644
--- a/zh-cn/swift-cn.html.markdown
+++ b/zh-cn/swift-cn.html.markdown
@@ -373,7 +373,7 @@ internal class Rect: Shape {
func shrink() {
if sideLength > 0 {
- --sideLength
+ sideLength -= 1
}
}