新增预览的接口访问

src/config/axios/index.ts

@@ -96,5 +96,9 @@ export default {
       ;(dom.parentNode as any).removeChild(dom)
       window.URL.revokeObjectURL(_url)
     })
-  }
+  },
+  //预览
+  doPreviewFile:<T = any>(option: AxiosConfig) => {
+    return request({ method: 'post', ...option,responseType: 'blob', headersType: 'application/json' }) as Promise<IResponse<T>>
+  },
 }