模拟了微信支付功能

pages/course/orderDetail/orderDetail.wxml

@@ -73,7 +73,7 @@
     <view class="flex-col justify-start items-center text-wrapper" bindtap="cancelOrder">
       <text class="font_3 text_17">取消</text>
     </view>
-    <view class="flex-col justify-start items-center text-wrapper_2" bindtap="goPay">
+    <view class="flex-col justify-start items-center text-wrapper_2" bindtap="showIsPayModal">
       <text class="font_3 text_18">立即支付</text>
     </view>
   </view>
@@ -84,4 +84,5 @@
       <text class="font_3 text_18">退款</text>
     </view>
   </view>
+  <view wx:if="{{isMaskVisible}}" class="page-mask"></view>
 </view>