优化取号问题

src/views/queue/index.vue

@@ -8,7 +8,14 @@
                         :key="item.id"></el-radio-button>
                 </el-radio-group>
                 <div class="btns">
-                    <el-button type="danger" @click="GetNumberRef.show(tabHeader)">取号</el-button>
+                    <el-button type="danger" :disabled="!tabHeader.length" @click="GetNumberRef.show(tabHeader)">
+                        <template v-if="tabHeader.length">
+                            取号
+                        </template>
+                        <template v-else>
+                            请在基本设置添加桌型后取号
+                        </template>
+                    </el-button>
                     <el-button type="warning" @click="RecordRef.show()">叫号记录</el-button>
                     <el-button type="primary" @click="SettingRef.show()">基本设置</el-button>
                 </div>