React实现了一个鼠标移入的菜单栏效果
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>Hello React</title>
<script src="https://unpkg.com/react@15.3.2/dist/react.js"></script>
<script src="https://unpkg.com/react-dom@15.3.2/dist/react-dom.js"></script>
<script src="https://unpkg.com/babel-core@5.8.38/browser.min.js"></script>
<style>
*{
margin:0;
padding:0;
}
ul{
list-style:none;
}
.menus{
}
.menus .menu{
float:left;
margin-left:4px;
}
.menus .menu button{
padding:4px;
}
.menus ul.sub-menu{
background:#c1d2e3;
}
.menus ul li{
padding-left:4px;
}
</style>
</head>
<body>
<div >
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
</ul>
</div>
<div class="menu">
<button>
{buttonName}
</button>
<ul class="sub-menu">
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
</ul>
</div>
</div> -->
</div>
<script type="text/babel">
var Menu = React.createClass({
mover : function() {
this.setState({
open : true
});
},
mout : function() {
this.setState({
open : false
});
},
getInitialState : function() {
return {
open : false
}
},
render : function() {
return (
<div className="menu">
<button onMouseOver={this.mover} onMouseOut={this.mout}>
{this.props.menuData.name}
</button>
<ul className="sub-menu" block" : "none"}}>
{this.props.menuData.arr.map((el, index) => {
return (<div key={index}>{el}</div>)
})}
</ul>
</div>)
}
});
var Menus = React.createClass({
render : function() {
return (<div className="menus">
{this.props.data.map((el ,index)=>{
return (<Menu key={index} menuData={el}/>)
})}
</div>);
}
});
var data = [
{
name : "menuName",
arr : [
"menu1",
"menu2",
"menu3",
"menu4"
]
},
{
name : "menuName1111",
arr : [
"menu-1",
"menu-2",
"menu-3",
"menu-4"
]
}
];
ReactDOM.render(<Menus data={data} />, document.getElementById("example"));
</script>
</body>
</html>