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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ## 五、this.props.children this.props 對象的屬性與組件的屬性一一對應,但是有一個例外,就是 this.props.children 屬性。它表示組件的所有子節點(查看?[demo05](https://github.com/ruanyf/react-demos/blob/master/demo05/index.html))。 > ~~~ > var NotesList = React.createClass({ > render: function() { > return ( > <ol> > { > this.props.children.map(function (child) { > return <li>{child}</li> > }) > } > </ol> > ); > } > }); > > React.render( > <NotesList> > <span>hello</span> > <span>world</span> > </NotesList>, > document.body > ); > ~~~ 上面代碼的 NoteList 組件有兩個 span 子節點,它們都可以通過 this.props.children 讀取,運行結果如下。 ![](https://box.kancloud.cn/2015-09-27_56077159475f4.png) 這里需要注意,只有當子節點多余1個時,this.props.children 才是一個數組,否則是不能用 map 方法的, 會報錯。
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