const DATA = {
    list: [
        {
            name: '第1项',
          checked: false,
            
        },
        {
            name: '第2项',
          checked: false,
            
        },
        {
            name: '第3项', 
          checked: false,
        }
    ]
}


new Vue({
    el: '.app',
    data: {
        list: [],
      nowChecked: null,
    },
    
    methods: {
        onClick(item) {
          this.nowChecked = item.name
        }
    },
    created() {
        this.list = DATA.list
    }
})