<template>
    <div style="margin: 200px;">
        <Select size="small" v-model="model10" multiple style="width:260px">
            <Option v-for="item in cityList" :value="item.value" :key="item.value">{{ item.label }}</Option>
        </Select>
        <Select v-model="model10" multiple style="width:260px">
            <Option v-for="item in cityList" :value="item.value" :key="item.value">{{ item.label }}</Option>
        </Select>
        <Select size="large" v-model="model10" multiple style="width:260px">
            <Option v-for="item in cityList" :value="item.value" :key="item.value">{{ item.label }}</Option>
        </Select>
    </div>
</template>
<script>
    export default {
        data () {
            return {
                cityList: [
                    {
                        value: 'New York',
                        label: 'New York'
                    },
                    {
                        value: 'London',
                        label: 'LondonLondonLondonLondonLondonLondonLondonLondonLondonLondonLondonLondonLondonLondonLondonLondonLondonLondon'
                    },
                    {
                        value: 'Sydney',
                        label: 'Sydney'
                    },
                    {
                        value: 'Ottawa',
                        label: 'Ottawa'
                    },
                    {
                        value: 'Paris',
                        label: 'Paris'
                    },
                    {
                        value: 'Canberra',
                        label: 'Canberra'
                    }
                ],
                model10: ['New York', 'London']
            }
        }
    }
</script>