input(type='checkbox')(v-model='item.checked')
============================分割线====================
从服务器拿到数据，为每个item设置checked属性
computed: {
storagegoods: {
get () {
let storagegoods = []
this.items.forEach(function (item) {
if (item.checked) {
storagegoods.push(item)
}
})
return storagegoods
}
}
}