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demos
/
react
/
11_字符串形式的ref
/
src
/
index.html

<html>
  <head>
    <title>字符串形式的ref</title>
  </head>
  <body>
    <div id="root"></div>
    <script type="text/javascript" src="../../js/react.development.js"></script>
    <script type="text/javascript" src="../../js/react-dom.development.js"></script>
    <script type="text/javascript" src="../../js/babel.min.js"></script>
    <script type="text/babel">
      class Demo extends React.Component {
        onClick = () => {
          const { input1 } = this.refs;
          alert(input1.value);
        }

        onBlur = () => {
          const { input2 } = this.refs;
          alert(input2.value);
        }

        render() {
          return (
            <div>
              <input ref="input1" type="text" placeholder="点击按钮显示输入内容" /> &nbsp;
              <button onClick={this.onClick}>点击显示左侧输入内容</button> &nbsp;
              <input ref="input2" type="text" onBlur={this.onBlur} placeholder="失去焦点显示输入内容" />
            </div>
          );
        }
      }
      ReactDOM.render(<Demo />, document.getElementById('root'));
    </script>
  </body>
</html>