分享一个最近写的进度条滑动组件，以前都是用jq写，学会了vue，尝试着拿vue来写觉得非常简单，代码复用性很强！
效果图如下：
调用组件如下：
<slider :min=0 :max=100 v-model = "per"></slider>
<template> <div ref="slider"> <div :style="{width}"></div> <div ref="trunk" :style="{left}"> <div></div> <div> <span>{{scale*100}}</span> <i ></i> </div> </div> </div> </template> <script> /* * min 进度条最小值 * max 进度条最大值 * v-model 对当前值进行双向绑定实时显示拖拽进度 * */ export default{ props:['min','max','value'], data(){ return{ slider:null, //滚动条DOM元素 thunk:null, //拖拽DOM元素 per:this.value, //当前值 } }, //渲染到页面的时候 mounted () { this.slider = this.$refs.slider; this.thunk = this.$refs.trunk; var _this = this; this.thunk.onmousedown = function (e) { var width = parseInt(_this.width); var disX = e.clientX; document.onmousemove = function(e){ // value, left, width // 当value变化的时候，会通过计算属性修改left，width // 拖拽的时候获取的新width var newWidth = e.clientX - disX + width; // 拖拽的时候得到新的百分比 var scale = newWidth / _this.slider.offsetWidth; _this.per = Math.ceil((_this.max - _this.min) * scale + _this.min); _this.per = Math.max(_this.per,_this.min); _this.per = Math.min(_this.per,_this.max); } document.onmouseup = function(){ document.onmousemove = document.onmouseup = null; } return false; } }, computed:{ // 设置一个百分比，提供计算slider进度宽度和trunk的left值 // 对应公式为 当前值-最小值/最大值-最小值 = slider进度width / slider总width // trunk left = slider进度width + trunk宽度/2 scale(){ return (this.per - this.min) / (this.max - this.min); }, width(){ if(this.slider){ return this.slider.offsetWidth * this.scale + 'px'; }else{ return 0 + 'px' } }, left(){ if(this.slider){ return this.slider.offsetWidth * this.scale - this.thunk.offsetWidth/2 + 'px'; }else{ return 0 + 'px' } } }, } </script> <style> .box{margin:100px auto 0;width:80%} .clear:after{content:'';display:block;clear:both} .slider{position:relative;margin:20px 0;width:400px;height:10px;background:#e4e7ed;border-radius:5px;cursor:pointer} .slider .process{position:absolute;left:0;top:0;width:112px;height:10px;border-radius:5px;background:#409eff} .slider .thunk{position:absolute;left:100px;top:-7px;width:20px;height:20px} .slider .block{width:20px;height:20px;border-radius:50%;border:2px solid #409eff;background:rgba(255,255,255,1);transition:.2s all} .slider .tips{position:absolute;left:-7px;bottom:30px;min-width:15px;text-align:center;padding:4px 8px;background:#000;border-radius:5px;height:24px;color:#fff} .slider .tips i{position:absolute;margin-left:-5px;left:50%;bottom:-9px;font-size:16px;color:#000} .slider .block:hover{transform:scale(1.1);opacity:.6} </style>