Vue.directive('red',function(color){
this.el.style.background=color;
});
window.onload=function(){
var vm=new Vue({
el:'#box',
data:{
a:'blue'
}
});
};
</script>
</head>
<body>
<div id="box">
<span v-red="a">
asdfasd
</span>
</div>
</body>
</html>
自定义指令写法三：
<div id="box">
<span v-red>
asdfasd
</span>
</div>
Vue.directive('red',{
bind:function(){
this.el.style.background='red';
}
});
window.onload=function(){
var vm=new Vue({
el:'#box'
});
};自定义指令：拖拽drag
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>www.jb51.net 自定义指令：拖拽drag</title>
<script src="https://cdn.bootcss.com/vue/1.0.4/vue.min.js"></script>
<script>
Vue.directive('drag',function(){
var oDiv=this.el;
oDiv.onmousedown=function(ev){
var disX=ev.clientX-oDiv.offsetLeft;
var disY=ev.clientY-oDiv.offsetTop;
document.onmousemove=function(ev){
var l=ev.clientX-disX;
var t=ev.clientY-disY;
oDiv.style.left=l+'px';
oDiv.style.top=t+'px';
};
document.onmouseup=function(){
document.onmousemove=null;
document.onmouseup=null;
};
};
});
window.onload=function(){
var vm=new Vue({
el:'#box',
data:{
msg:'welcome'
}
});
};
</script>
</head>
<body>
<div id="box">
<div v-drag :style="{width:'100px', height:'100px', background:'blue', position:'absolute', right:0, top:0}"></div>
<div v-drag :style="{width:'100px', height:'100px', background:'red', position:'absolute', left:0, top:0}"></div>
</div>
</body>
</html>自定义元素指令
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>www.jb51.net 自定义元素指令</title>
<style>
zns-red{
width:100px;
background: gray;
height:100px;
display: block;
}
</style>
<script src="https://cdn.bootcss.com/vue/1.0.4/vue.min.js"></script>
