diff --git a/README.md b/README.md
index b483f64..5773378 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,17 @@
-# DoImagePicker
\ No newline at end of file
+# DoImagePicker
+图片选择器
+
+使用方法：
+
+            DoImagePickerGroupViewController *doImagePickerGroupViewController = [[DoImagePickerGroupViewController alloc] init];
+            doImagePickerGroupViewController.doImagePickerController.delegate = self;
+            doImagePickerGroupViewController.doImagePickerController.nMaxCount = 8-_imgArray.count;
+            
+            UINavigationController* imagePickercontroller = [[UINavigationController alloc] initWithRootViewController:doImagePickerGroupViewController];
+            [self presentViewController:imagePickercontroller animated:YES completion:nil];
+            
+            
+            
+实现这两个代理即可。
+- (void)didCancelDoImagePickerController;
+- (void)didSelectPhotosFromDoImagePickerController:(DoImagePickerController *)picker result:(NSArray *)aSelected;