响应参数
<table>
<thead>
<tr>
<th>参数名</th>
<th>说明</th>
<th>必选</th>
<th>类型</th>
</tr>
</thead>
<tbody>
<tr>
<td>ret_code</td>
<td>业务返回码,参考应答码描述</td>
<td>是</td>
<td>String</td>
</tr>
<tr>
<td>ret_msg</td>
<td>业务返回说明</td>
<td>是</td>
<td>String</td>
</tr>
<tr>
<td>biz_content</td>
<td>业务响应参数密文</td>
<td>否</td>
<td>String</td>
</tr>
<tr>
<td>mer_no</td>
<td>商户号</td>
<td>否</td>
<td>String</td>
</tr>
<tr>
<td>sign</td>
<td>响应参数签名</td>
<td>否</td>
<td>String</td>
</tr>
</tbody>
</table>