fetch.js优化，更好支持typescript

Author: sunshine824

src/api/types/user.ts

@@ -1,6 +1,6 @@
 /**
  * 接口返回结果Types
- * --------------------------------------------------------------------------
+ * ------------------------------------------------------------------------------------------
  */
 // 登录返回结果
 export interface ILoginData {
@@ -13,7 +13,7 @@ export interface ILoginData {
 
 /**
  * 接口参数Types
- * --------------------------------------------------------------------------
+ * ------------------------------------------------------------------------------------------
  */
 // 登录参数
 export interface ILoginApiParams {
@@ -29,7 +29,7 @@ export interface IPermissionsParams {}
 
 /**
  * 接口定义Types
- * --------------------------------------------------------------------------
+ * ------------------------------------------------------------------------------------------
  */
 export interface IUserApi {
   login: (params: ILoginApiParams) => Promise<StoreState.ResType<ILoginData>>