小优化

example/src/App.tsx

@@ -43,7 +43,7 @@ class App extends React.Component {
           <ImageList>
             {photoImages.map((item, index) => (
               <PhotoConsumer key={index} src={item} intro={item}>
-                <SmallImage />
+                {index < 2 ? <SmallImage src={item} /> : undefined}
               </PhotoConsumer>
             ))}
           </ImageList>

src/PhotoSlider.tsx

@@ -89,8 +89,6 @@ export default class PhotoSlider extends React.Component<
       canPullClose: true,
     };
     this.handleResize = debounce(this.handleResize, 32);
-    // 避免事件穿透
-    this.handlePhotoMaskTap = debounce(this.handlePhotoMaskTap, 200);
   }
 
   componentDidMount() {