65281 挂号管理-挂号信息卡片 挂号按钮应该修改颜色，参考UI图

src/views/service-management/registration-queue/components/doctor-card.vue

@@ -147,11 +147,11 @@
                 <el-button type="text" :class="item.plusSign === '0'?'add_show':'add_hidden'">挂号</el-button>
               </div>
               <!--给它传一个userId,一个类型和一个默认页数-->
-              <div class="add">
+              <div class="add"  v-if="item.plusSign === '0'">
                 <div class="add-img">
                   <el-image :src="require('@/assets/register/xinzengguahao_jiahao@2x.png')" />
                 </div>
-                <el-button v-if="item.plusSign === '0'" type="text" :disabled="item.plusSign === '1'" @click="registration(item.userId, '1',item,0)">
+                <el-button type="text" :disabled="item.plusSign === '1'" @click="registration(item.userId, '1',item,0)">
                   加号
                 </el-button>
               </div>