禁用
渲染禁用
xmSelect.render({
    //...
    disabled: true
})
<div id="demo1" class="xm-select-demo"></div>
<script>
var demo1 = xmSelect.render({
    el: '#demo1', 
    disabled: true,
    data: [
        {name: '张三', value: 1, selected: true},
        {name: '李四', value: 2},
        {name: '王五', value: 3, disabled: true},
    ]
})
</script>
动态启用禁用
<div id="demo2" class="xm-select-demo"></div>
<button class="btn" id="demo21">禁用</button>
<button class="btn" id="demo22">启用</button>
<script>
var demo2 = xmSelect.render({
    el: '#demo2', 
    data: [
        {name: '张三', value: 1, selected: true},
        {name: '李四', value: 2},
        {name: '王五', value: 3, disabled: true},
    ]
})
document.getElementById('demo21').onclick = function(){
    demo2.update({ disabled: true });
}
document.getElementById('demo22').onclick = function(){
    demo2.update({ disabled: false });
}
</script>
选完张三后禁用
<div id="demo3" class="xm-select-demo"></div>
<button class="btn" id="demo3-disabled">启用</button>
<script>
var demo3 = xmSelect.render({
    el: '#demo3', 
    data: [
        {name: '张三', value: 1},
        {name: '李四', value: 2},
        {name: '王五', value: 3},
    ],
    on({ arr, change, isAdd }){
        var hasZS = change.find(item => item.name === '张三');
        if(isAdd && hasZS){
            demo3.update({ disabled: true });
        }
    }
})
//没有做不到, 只有想不到, 把多选玩出花来吧
document.getElementById('demo3-disabled').onclick = function(){
    demo3.update({ disabled: false });
}
</script>