xm-select/docs/mds/XM18.md

## 多选上限


### 最多选择2个

:::demo 
```html
<div id="demo1" class="xm-select-demo"></div>

<script>
var demo1 = xmSelect.render({
    el: '#demo1', 
    max: 2,
    data: [
        {name: '张三', value: 1, selected: true},
        {name: '李四', value: 2, selected: true},
        {name: '王五', value: 3},
    ]
})
</script>
```
:::


### 自定义选超的提示

:::demo 
```html
<div id="demo2" class="xm-select-demo"></div>

<script>
var demo2 = xmSelect.render({
    el: '#demo2', 
    max: 2,
    maxMethod(seles, item){
        alert(`${item.name}不能选了, 已经超了`)
    },
    data: [
        {name: '张三', value: 1, selected: true},
        {name: '李四', value: 2, selected: true},
        {name: '王五', value: 3},
    ]
})
</script>
```
:::


### 自定义选超的闪烁颜色

:::demo 
```html
<div id="demo3" class="xm-select-demo"></div>

<script>
var demo3 = xmSelect.render({
    el: '#demo3', 
    max: 2,
    theme: {
        maxColor: 'orange',
    },
    data: [
        {name: '张三', value: 1, selected: true},
        {name: '李四', value: 2, selected: true},
        {name: '王五', value: 3},
    ]
})
</script>
```
:::