diff --git a/README.md b/README.md
index e69de29..ac9343b 100644
--- a/README.md
+++ b/README.md
@@ -0,0 +1,5 @@
+配合SdWebImage 使用，可以显示加载进度
+UIImageView *imageView = [[UIImageView alloc] initWithFrame:frame];
+        imageView.imageURL = attachment.contentURL;
+        [imageView setOnTouchTapBlock:^(UIImageView *imageView) {
+        }];