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Note the difference between React.DOM and ReactDOM. The first is a collection of ready-made HTML elements, and the second is a way to render the app in the browser (think ReactDOM.render()).

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Cover of React: Up & Running

Note

React.DOM 和 ReactDOM 的区别,前者是一些准备好的 HTML 元素的集合。后者提供了把 app秀到浏览器的方法。