加点注释，不用在意

wx_application/src/views/active/createBigWheelActive.vue

@@ -420,6 +420,7 @@ export default {
   },
   created() {},
   methods: {
+    // 限制 vant stepper 输入长度
     handleProbalitity(val) {
       if (val.length > 2) {
         document.getElementsByClassName('pro-input')[0].getElementsByTagName('input')[0].maxLength = 3;
@@ -516,6 +517,7 @@ export default {
       this.show = true;
       this.current_index = index;
     },
+    // 选择优惠券
     onSelect(val) {
       this.prizeList[this.current_index].checked_coupon = val;
       this.show = false;