Invalid handler for event "click": got undefined
<!DOCTYPE html>
<html lang="en" xmlns:v-on="http://www.w3.org/1999/xhtml">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="./vue.js"></script>
</head>
<body>
<!--这里的div是挂载点-->
<div id="sio">
<div v-on:click="handleClick">
{{content}}
</div>
</div>
<script>
new Vue({
el: "#sio",
data: {
content: "hello"
},
method: {
handleClick: function () {
alert(123)
}
}
})
</script>
</body>
</html>
如图，点击hello后没有反应，控制台输出的信息如上。求帮忙?
