Merge pull request #174 from antvis/fix_line

feat: popup add open event

docs/api/component/popup.en.md

@@ -90,6 +90,22 @@ popup.open();
 popup.close();
 ```
 
+#### open
+
+显示 popup
+
+```javascript
+popup.open();
+```
+
+#### close
+
+显示 popup
+
+```javascript
+popup.close();
+```
+
 #### remove
 
 移除 popup

docs/api/component/popup.zh.md

@@ -90,6 +90,22 @@ popup.open();
 popup.close();
 ```
 
+#### open
+
+显示 popup
+
+```javascript
+popup.open();
+```
+
+#### close
+
+显示 popup
+
+```javascript
+popup.close();
+```
+
 #### remove
 
 移除 popup