React? ????? ?? ???? ?????. ???? ?? ???? ??? ??? ??? ?? ??? ?????? ???? ???? ???? ?? UI? ??????.

??? ????(state) ???

React??? ?? ??? ??? ????? ?? ? ??? ???? ??? ?????? ?? ?????? ?? ???(DOM? ???? ??).

?? ????? LikeButton ?? ??? ?????. getInitialState ???? ??? ?? ??? ???? ? ?????. ? ??? this.state ??? ?? ?? ? ????. ???? ?? ??? ???? ??? ???? this.setState ???? ?? ?? ?????. ? ?? ? this.render ???? ???? ???? ?? ??? ?? ??????.

??? ????(state) ?

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <title>php.cn React 實例</title>
    <script src="https://cdn.bootcss.com/react/15.4.2/react.min.js"></script>
	<script src="https://cdn.bootcss.com/react/15.4.2/react-dom.min.js"></script>
	<script src="https://cdn.bootcss.com/babel-standalone/6.22.1/babel.min.js"></script>
  </head>
  <body>
    <div id="example"></div>
    <script type="text/babel">
      var LikeButton = React.createClass({
        getInitialState: function() {
          return {liked: false};
        },
        handleClick: function(event) {
          this.setState({liked: !this.state.liked});
        },
        render: function() {
          var text = this.state.liked ? '喜歡' : '不喜歡';
          return (
            <p onClick={this.handleClick}>
              你<b>{text}</b>我。點我切換狀態(tài)。
            </p>
          );
        }
      });

      ReactDOM.render(
        <LikeButton />,
        document.getElementById('example')
      );
    </script>
  </body>
</html>

???? ?? ?

??? ????? ??? "???? ??" ??? ?????