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vue动态改变背景图片demo分享

时间:2021-08-10 09:24:09 | 栏目:vue | 点击:

如下所示:

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script type="text/javascript" src="js/vue.js" ></script>
<style>
#bag{
width: 200px;
height: 500px;
margin: 0 auto;
background: url(img/piao11.jpg) center no-repeat;
background-size: 80%;
}
.burst{
background-image: url(img/piao12.jpg) !important;
background-size: 80%;
} 

#bag-health{
width: 200px;
border: 2px solid #000000;
margin: 0 auto 20px auto;
}
#bag-health div{
height: 20px;
background: crimson;
}

#controls{
width: 200px;
margin: 0 auto;
} 
#controls button{
margin-left: 23px;
}
</style>
</head>
<body>
<div id="app">
<!--当前图片-->
<div id="bag" :class='{burst:ended}'></div>

<!--进度情况-->
<div id="bag-health">
<div :style="{width:health + '%'}"></div>
</div>

<!--控制按钮-->
<div id="controls">
<button @click='punch' v-show='!ended'>使劲敲</button>

<button @click='restart'>重新开始</button>
</div>
</div>

<script>
new Vue({
el:"#app",
data:{
health:100,
ended:false
},
methods:{
punch:function(){
this.health -= 10;

if (this.health<=0) {
this.ended = true

}
},
restart:function(){
this.health = 100;
this.ended = false
}
},
computed:{

}
})
</script>
</body>
</html>

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