修复：

1.代客下单先付费下直接点扫码支付获取支付链接失败
2.修复清空购物车删除因为报错导致购物车清空事变

src/views/tool/Instead/components/scan-pay.vue

@@ -141,7 +141,8 @@ export default {
         this.$nextTick(() => {
           QRCode.toCanvas(
             this.$refs.canvas,
-            this.paymentQrcode,
+            this.paymentQrcode,{width: 160,
+              height: 160,},
             function (error) {
               console.log(error);
             }
@@ -192,11 +193,11 @@ export default {
       this.close();
       this.$emit("confirm", this.form.code);
     },
-    open() {
+    open(data) {
       this.show = true;
       this.form.money = Number(this.price).toFixed(2);
       if (this.openSwitch) {
-        $getOrderPayUrl({ orderId: this.order.id,payAmount:this.price.toFixed(2) }).then((res) => {
+        $getOrderPayUrl({ orderId: this.order.id||data.id,payAmount:this.form.money||data.settlementAmount }).then((res) => {
           console.log(res);
           this.paymentQrcode = res;
         });