<th v-for="(person,index) in people">        <td>            {{person}}        </td>         <td class="text-center">            <button v-on:click="deleteItem(index)">delete</button>        </td> </th></tr>為什么把td標(biāo)簽換成其它比如div后，就可以了，否則報(bào)下面這個(gè)錯(cuò)誤： Property or method "person" is not defined on the instance but referenced during render. Make sure to declare reactive data properties in the data option.求vue大神指點(diǎn)