小例子（點選按鈕數值加一）
阿新 • • 發佈：2018-12-27
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>W3Cschool教程 React 例項</title>
<script src="//www.w3cschool.cn/statics/assets/react/react.min.js"></script>
<script src="//www.w3cschool.cn/statics/assets/react/react-dom.min.js"></script>
<script src="//www.w3cschool.cn/statics/assets/react/babel.min.js"></script>
</head>
<body>
<div id="example"></div>
<script type="text/babel">
var HelloMessage = React.createClass({
getInitialState: function() {
return {count: 0};
},
handleChange: function(event) {
this.setState({count: event.target.value});
},
render: function(){
let count = this.state.count;
return <div>
<button type="text" value={1+parseInt(count)} onClick={this.handleChange} >點選按鈕加1</button>
<h4>{count}</h4>
</div>;
}
});
ReactDOM.render(
<HelloMessage />,
document.getElementById('example')
);
</script>
</body>
</html>