bugfixed

pages/home/home.js

@@ -375,16 +375,19 @@ Page({
       printer.printText("收银员账号：" + printLastOrder_paySuccessResp.operatorId),
       printer.printText("订单号：" + printLastOrder_paySuccessResp.tradeNo),
       printer.printNowDate(),
-      printer.printDivide("-"),
-      printer.printText("活动商品"),
-      printer.printText("商品名称    " + "    编码    " + "    数量"),
     ];
-    for (var i = 0; i < printLastOrder_goodsList.length; i++) {
-      //循环取出商品数据
-      cmds.push(printer.setAlign(printer.ALIGN_LEFT));
-      cmds.push(printer.printText(printLastOrder_goodsList[i].name));
-      cmds.push(printer.printTwoText(printLastOrder_goodsList[i].barcode, printLastOrder_goodsList[i].quantity + ""));
+    if (null != this.data.goodsList && this.data.goodsList.length > 0) {
+        cmds.push(printer.printDivide("-")),
+        cmds.push(printer.printText("活动商品")),
+        cmds.push(printer.printText("商品名称    " + "    编码    " + "    数量"))
+      for (var i = 0; i < printLastOrder_goodsList.length; i++) {
+        //循环取出商品数据
+        cmds.push(printer.setAlign(printer.ALIGN_LEFT));
+        cmds.push(printer.printText(printLastOrder_goodsList[i].name));
+        cmds.push(printer.printTwoText(printLastOrder_goodsList[i].barcode, printLastOrder_goodsList[i].quantity + ""));
+      }
     }
+   
     cmds.push(printer.setAlign(printer.ALIGN_LEFT));
     cmds.push(printer.printDivide("-"));
     cmds.push(printer.printText("应收金额:" + printLastOrder_orderPriceYuan));