Merge branch 'v5.1.0dev' of https://gitee.com/ZhongBangKeJi/CRMEB into v5.1.0dev

crmeb/app/services/other/export/ExportServices.php

@@ -129,7 +129,11 @@ class ExportServices extends BaseServices
                 }
                 $custom_form = '';
                 foreach ($item['custom_form'] as $custom_form_value) {
-                    $custom_form .= $custom_form_value['title'] . '：' . $custom_form_value['value'] . '；';
+                    if (is_string($custom_form_value['value'])) {
+                        $custom_form .= $custom_form_value['title'] . '：' . $custom_form_value['value'] . '；';
+                    } elseif (is_array($custom_form_value['value'])) {
+                        $custom_form .= $custom_form_value['title'] . '：' . implode(',', $custom_form_value['value']) . '；';
+                    }
                 }
 
                 $goodsName = [];