style：添加注释

coupon/myOrder.html

@@ -48,12 +48,15 @@
                     </div>
                     <div class="bottom">
                         <p class="money">实付金额：￥<span>{{item.pay_amount}}</span></p>
+                        <!-- 立即领取 -->
                         <p class="button" @click="immediatelyPay(item)" v-if="item.status==6">立即支付</p>
                         <!-- 立减金待领取 -->
                         <p class="button" @click="receiveFn(item)" v-if="item.status==0&&item.type==2">去兑换</p>
                         <!-- 立减金领取过期 -->
                         <p class="button filter" @click="receiveFn(item)" v-if="item.status==5&&item.type==2">去兑换</p>
+                        <!-- 查看卡密 -->
                         <p class="button-card" @click="lookCard(item)" v-if="item.status==2&&item.type==1">查看卡密</p>
+                        <!-- 款项状态 -->
                         <p class="pay_status" v-if="[2,3].includes(item.pay_type)&&item.status==3&&item.type==1">
                             {{item.pay_type==2?'已支付':'已退款'}}</p>
                     </div>