实现简单的数据双向绑定，基于 Object.defineProperty。
实现了三个指令 e-bind、e-model、e-click。
<!DOCTYPE html>
<head>
<meta charset="UTF-8">
<meta name="author" content="赖祥燃, laixiangran@163.com, http://www.laixiangran.cn"/>
<title>实现简单的双向数据绑定</title>
<style>
#app {
text-align: center;
}
</style>
<script src="eBind.js"></script>
<script>
window.onload = function () {
new EBind({
el: '#app',
data: {
number: 0,
person: {
age: 0
}
},
methods: {
increment: function () {
this.number++;
},
addAge: function () {
this.person.age++;
}
}
});
};
</script>
</head>
<body>
<div id="app">
<form>
<input type="text" e-model="number">
<button type="button" e-click="increment">增加</button>
</form>
<h3 e-bind="number"></h3>
<form>
<input type="text" e-model="person.age">
<button type="button" e-click="addAge">增加</button>
</form>
<h3 e-bind="person.age"></h3>
</div>
</body>