3.接口通用返回值
<table>
<tr>
<td>元素</td>
<td>类型</td>
<td>值</td>
<td>说明</td>
</tr>
<tr>
<td rowspan="6">code</td>
<td rowspan="6">Int</td>
</tr>
<tr>
<td>0</td>
<td>成功</td>
</tr>
<tr>
<td>1</td>
<td>缺少参数</td>
</tr>
<tr>
<td>2</td>
<td>签名验证失败</td>
</tr>
<tr>
<td>3</td>
<td>数据不存在</td>
</tr>
<tr>
<td>4</td>
<td>其他异常</td>
</tr>
<tr>
<td>Return</td>
<td>String</td>
<td colspan="2">仅当接口通过验签，执行实际业务,才会返回该值【SUCCESS/Failure】</td>
</tr>
</table>
### 示例
```json
{
"code":0,
"Return":"SUCCESS"
}
```