<template>
<div class="vueBox" >
<div class="marquee">
<div class="marquee_title">
<span>最新战报</span>
</div>
<div class="marquee_box">
<ul class="marquee_list" :style="{ top: -num + 'px'}" :class="{marquee_top:num}">
<!-- 当显示最后一条的时候(num=0转换布尔类型为false)去掉过渡效果-->
<li v-for="(item, index) in items" >
<span>{{item.name}}</span>
<span>在</span>
<span class="red"> {{item.city}}</span>
<span>杀敌</span>
<span class="red"> {{item.amount}}</span>
<span>万</span>
</li>
</ul>
</div>
</div>
</div>
</template>
<script>
export default {
name: 'Demo05',
data() {
return {
items: [
{
name:'1军',
city:'北京',
amount:'10'
},
{
name:'2军',
city:'上海',
amount:'20'
},
{
name:'3军',
city:'广州',
amount:'30'
},
{
name:'4军',
city:'重庆',
amount:'40'
},
{
name:'5军',
city:'杭州',
amount:'50'
}
]
}
},
created(){
setInterval(this.scroll,1000)
},
methods: {
scroll(){
setTimeout(()=>{ // 这里直接使用了es6的箭头函数,省去了处理this指向偏移问题,代码也比之前简化了很多
this.items.push(this.items[0]); // 将数组的第一个元素添加到数组的
this.items.shift(); //删除数组的第一个元素,打印的是剩下的数组
},500)
}
}
}
</script>
<style scoped>
div,ul,li,span,img{
margin:0;
padding:0;
display: flex;
box-sizing: border-box;
}
.marquee{
width: 100%;
height: 200px;
align-items: center;
color: #3A3A3A;
background-color: aqua;
display: flex;
box-sizing: border-box;
}
.marquee_title{
padding: 0 20px;
height: 30px;/*关键样式*/
font-size: 14px;
border-right: 1px solid #d8d8d8;
align-items: center;
}
.marquee_box{
display: block;
position: relative;
width: 60%;
height: 90px;/*关键样式*/
overflow: hidden;
}
.marquee_list{
display: block;
position: absolute;
top:0;
left: 0;
}
.marquee_top{transition: top 0.5s ;}/*关键样式*/
.marquee_list li{
height: 30px;/*关键样式*/
line-height: 30px;/*关键样式*/
font-size: 14px;
padding-left: 20px;
background-color: #fff;
}
.marquee_list li span{
padding:0 2px;
}
.red{
color: #FF0101;
}
</style>
vue2 实验
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转载自blog.csdn.net/zhousenshan/article/details/81590264
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