问题描述
在 React Native 中，您可以将一组组件封装在一个 <View>(或类似的)组件中.您还可以将一组组件封装为 <> 和 </>.这些是什么?他们只是转换为基本视图吗?这可能不是一个好的做法，但它不会发出警告，也不会崩溃.
In React Native you can encapsulate a set of components in one single <View> (or similar) component. You can also encapsulate a set of components as <> and </>. What are these? Do they just translate to an base View? It's probably not a good practice but it doesn't give a warning and it doesn't crash.
推荐答案
这是 Fragment 组件的 React 快捷方式.
It's the React shortcut for Fragment component.
你可以这样写:
import React, { Component } from 'react'
class Component extends Component {
render() {
return <> <ComponentA/> <ComponentB/> </>
}
}
或者不用快捷键，导入Fragment组件
Or without the shortcut and import Fragment component
import React, { Component, Fragment } from 'react'
class Component extends Component {
render() {
return <Fragment> <ComponentA/> <ComponentB/> </Fragment>
}
}
你必须知道，你不能使用任何快捷键或道具.
You have to know, you can't use any key or prop with the shortcut syntax.
这里是官方文档
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