diff --git a/src/utils/request.ts b/src/utils/request.ts
index df5b48ff..bca9c68b 100644
--- a/src/utils/request.ts
+++ b/src/utils/request.ts
@@ -66,10 +66,10 @@ export const patch = function(url: string, data = {}) {
  * GET method request
  * @param {String} url
  * @param {Object} [params]
- * @param {Object} [ext], 扩展参数
+ * @param {Object} [ext] 扩展参数
  * @returns {AxiosInstance}
  */
-export const get = function(url: string, params = {},  ext: any) {
+export const get = function(url: string, params = {},  ext?: any) {
     return request({
         method: 'GET',
         url,
@@ -82,10 +82,10 @@ export const get = function(url: string, params = {},  ext: any) {
  * DELETE method request
  * @param {String} url
  * @param {Object} [params]
- * @param {Object} [ext], 扩展参数
+ * @param {Object} [ext] 扩展参数
  * @returns {AxiosInstance}
  */
-export const remove = function(url: string, params = {}, ext: any) {
+export const remove = function(url: string, params = {}, ext?: any) {
     return request({
         method: 'DELETE',
         url,