Update content/docs/refs-and-the-dom.md

yuqingc · pampang · web-flow · commit 2a3fed2cea51 · 2019-03-24T09:44:15.000+08:00
Co-Authored-By: pampang &lt;fspwz@sina.com&gt;
diff --git a/content/docs/refs-and-the-dom.md b/content/docs/refs-and-the-dom.md
@@ -131,7 +131,7 @@ class AutoFocusTextInput extends React.Component {
 }
 ```
 
-请注意，这仅在 `CustomTextInput` 声明为类时才有效：
+请注意，这仅在 `CustomTextInput` 声明为 class 时才有效：
 
 ```js{1}
 class CustomTextInput extends React.Component {

Original file line number	Diff line number	Diff line change
`@@ -131,7 +131,7 @@ class AutoFocusTextInput extends React.Component {`
`131`	`131`	`}`
`132`	`132`	```
`133`	`133`
`134`		-请注意，这仅在 `CustomTextInput` 声明为类时才有效：
	`134`	+请注意，这仅在 `CustomTextInput` 声明为 class 时才有效：
`135`	`135`
`136`	`136`	```js{1}
`137`	`137`	`class CustomTextInput extends React.Component {`