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代码编辑器：

<title>React Hello World -简单教程 </title>
<script src="https://cdn.staticfile.org/react/15.5.4/react.min.js"></script>
<script src="https://cdn.staticfile.org/react/15.5.4/react-dom.min.js"></script>
<script src="https://cdn.staticfile.org/babel-standalone/6.24.0/babel.min.js"></script>
<div id="app"></div>
<script type="text/babel">
var Button = React.createClass({
  getInitialState: function() {
    return {
      data:0
    };
  },
  setNewNumber: function() {
    this.setState({data: this.state.data + 1})
  },
  render: function () {
      return (
         <div>
            <button onClick = {this.setNewNumber}>点我增加计数</button>
            <Content myNumber = {this.state.data}></Content>
         </div>
      );
    }
})
var Content = React.createClass({
  componentWillMount:function() {
      console.log('Component WILL MOUNT!')
  },
  componentDidMount:function() {
       console.log('Component DID MOUNT!')
  },
  componentWillReceiveProps:function(newProps) {
        console.log('Component WILL RECEIVE PROPS!')
  },
  shouldComponentUpdate:function(newProps, newState) {
        return true;
  },
  componentWillUpdate:function(nextProps, nextState) {
        console.log('Component WILL UPDATE!');
  },
  componentDidUpdate:function(prevProps, prevState) {
        console.log('Component DID UPDATE!')
  },
  componentWillUnmount:function() {
         console.log('Component WILL UNMOUNT!')
  },
 
    render: function () {
      return (
        <div>
          <h3>{this.props.myNumber}</h3>
        </div>
      );
    }
});
ReactDOM.render(
   <div>
      <Button />
   </div>,
  document.getElementById('app')
);
</script>

代码编辑器：

运行结果：