去除警告

src/view/Manage/Model/Component/ExportModal.jsx

@@ -181,7 +181,7 @@ class ExportModal extends React.Component {
       取消
       </Button>,
       <Button
-        key="0" 
+        key="1" 
         type="primary"
         onClick={this.handleOk}
       >
@@ -208,7 +208,7 @@ class ExportModal extends React.Component {
             {
               modes && modes.map((mode, index) => {
                 return (
-                  <Radio key={mode.key||''} value={mode.key||''}>
+                  <Radio key={index} value={mode.key||''}>
                   { mode.title||'' }
                   </Radio>
                 );