el-select绑定值为对象时,报错[Vue warn]: <transition-group> children must be keyed: <ElTag>
解决方法:
<el-select v-model="syncParams.toSlaveList" multiple value-key="ip" placeholder="请选择">
<el-option
v-for="item in slaveList"
:key="item.ip"
:label="item.ip"
:value="item">
</el-option>
</el-select>
el-select必须加入value-key属性,且值为item中的一个唯一属性,例如ip