el-button 选择与非选择按钮批量处理

 <el-button v-for="(voyage,i) in data['voyages'][nowVoyage]"
                     :key="i"
                     class="c-work-bts"
                     type="primary"
                     :plain="nowWorkSpace!==i"
                     @click="chooseWorkSpace(i)"
                     size="small">{{ voyage.alias }}
          </el-button>