功能：问题修复

src/pages/resourceManage/businessCaseManage/comp/previewModal/index.tsx

@@ -48,7 +48,9 @@ const PreviewModal: FC<propType> = (props) => {
         }}
       >
         <div style={{ fontSize: '20px', fontWeight: 'bold' }}>{data?.caseTitle}</div>
-        <div style={{ fontSize: '15px', marginBottom: '10px' }}>{data?.createTime}</div>
+        <div style={{ fontSize: '15px', marginBottom: '10px' }}>
+          {data?.updateTime || data?.createTime}
+        </div>
       </div>
       <RichText value={data?.caseContents} height={350} isDetail={true} />
     </Modal>