## Slider 滑块
通过拖动滑块在一个固定区间内进行选择
### 基础用法
在拖动滑块时,显示当前值
:::demo 通过设置绑定值自定义滑块的初始值
```html
<template>
<div class="block">
<span class="demonstration">默认</span>
<el-slider v-model="value1"></el-slider>
</div>
<div class="block">
<span class="demonstration">自定义初始值</span>
<el-slider v-model="value2"></el-slider>
</div>
<div class="block">
<span class="demonstration">隐藏 Tooltip</span>
<el-slider v-model="value3" :show-tooltip="false"></el-slider>
</div>
<div class="block">
<span class="demonstration">格式化 Tooltip</span>
<el-slider v-model="value4" :format-tooltip="formatTooltip"></el-slider>
</div>
<div class="block">
<span class="demonstration">禁用</span>
<el-slider v-model="value5" disabled></el-slider>
</div>
</template>
<script>
export default {
data() {
return {
value1: 0,
value2: 50,
value3: 36,
value4: 48,
value5: 42
}
},
methods: {
formatTooltip(val) {
return val / 100;
}
}
}
</script>
```
:::
### 离散值
选项可以是离散的
:::demo 改变`step`的值可以改变步长,通过设置`show-stops`属性可以显示间断点
```html
<template>
<div class="block">
<span class="demonstration">不显示间断点</span>
<el-slider
v-model="value1"
:step="10">
</el-slider>
</div>
<div class="block">
<span class="demonstration">显示间断点</span>
<el-slider
v-model="value2"
:step="10"
show-stops>
</el-slider>
</div>
</template>
<script>
export default {
data() {
return {
value1: 0,
value2: 0
}
}
}
</script>
```
:::
### 带有输入框
通过输入框设置精确数值
:::demo 设置`show-input`属性会在右侧显示一个输入框
```html
<template>
<div class="block">
<el-slider
v-model="value"
show-input>
</el-slider>
</div>
</template>
<script>
export default {
data() {
return {
value: 0
}
}
}
</script>
```
:::
### 范围选择
支持选择某一数值范围
:::demo 设置`range`即可开启范围选择,此时绑定值是一个数组,其元素分别为最小边界值和最大边界值
```html
<template>
<div class="block">
<el-slider
v-model="value"
range
show-stops
:max="10">
</el-slider>
</div>
</template>
<script>
export default {
data() {
return {
value: [4, 8]
}
}
}
</script>
```
:::
### 竖向模式
:::demo 设置`vertical`可使 Slider 变成竖向模式,此时必须设置高度`height`属性
```html
<template>
<div class="block">
<el-slider
v-model="value"
vertical
height="200px">
</el-slider>
</div>
</template>
<script>
export default {
data() {
return {
value: 0
}
}
}
</script>
```
:::
### 展示标记
:::demo 设置 `marks` 属性可以展示标记
```html
<template>
<div class="block">
<el-slider
v-model="value"
range
:marks="marks">
</el-slider>
</div>
</template>
<script>
export default {
data() {
return {
value: [30, 60],
marks: {
0: '0°C',
8: '8°C',
37: '37°C',
50: {
style: {
color: '#1989FA'
},
label: this.$createElement('strong', '50%')
}
}
}
}
}
</script>
```
:::