diff --git a/SDCycleScrollView/Lib/SDCycleScrollView/SDCollectionViewCell.m b/SDCycleScrollView/Lib/SDCycleScrollView/SDCollectionViewCell.m
index 83f8ee06..c42f39fb 100644
--- a/SDCycleScrollView/Lib/SDCycleScrollView/SDCollectionViewCell.m
+++ b/SDCycleScrollView/Lib/SDCycleScrollView/SDCollectionViewCell.m
@@ -84,7 +84,7 @@ - (void)setupTitleLabel
 
 - (void)setTitle:(NSString *)title
 {
-    _title = [title copy];
+    _title = title;
     _titleLabel.text = [NSString stringWithFormat:@"   %@", title];
     if (_titleLabel.hidden) {
         _titleLabel.hidden = NO;
diff --git a/SDCycleScrollView/Lib/SDCycleScrollView/SDCycleScrollView.h b/SDCycleScrollView/Lib/SDCycleScrollView/SDCycleScrollView.h
index e6a290eb..a341a3c4 100644
--- a/SDCycleScrollView/Lib/SDCycleScrollView/SDCycleScrollView.h
+++ b/SDCycleScrollView/Lib/SDCycleScrollView/SDCycleScrollView.h
@@ -35,16 +35,16 @@
 
 #import <UIKit/UIKit.h>
 
-typedef enum {
-    SDCycleScrollViewPageContolAlimentRight,
+typedef NS_ENUM(NSInteger, SDCycleScrollViewPageContolAliment) {
+    SDCycleScrollViewPageContolAlimentRight = 0,
     SDCycleScrollViewPageContolAlimentCenter
-} SDCycleScrollViewPageContolAliment;
+};
 
-typedef enum {
-    SDCycleScrollViewPageContolStyleClassic,        // 系统自带经典样式
+typedef NS_ENUM(NSInteger, SDCycleScrollViewPageContolStyle) {
+    SDCycleScrollViewPageContolStyleClassic = 0,    // 系统自带经典样式
     SDCycleScrollViewPageContolStyleAnimated,       // 动画效果pagecontrol
     SDCycleScrollViewPageContolStyleNone            // 不显示pagecontrol
-} SDCycleScrollViewPageContolStyle;
+};
 
 @class SDCycleScrollView;