perf：全局配置prefix

src/https/HttpUtil.js

@@ -49,6 +49,7 @@ const request = extend({
  */
 let httpConfig = {
   encryptBody: true,
+  prefix: "",
 }
 
 
@@ -86,6 +87,9 @@ const dealParamsBody = (options) => {
  * @returns {Promise<<any>>}
  */
 async function req(url, options) {
+  if (httpConfig.prefix) {
+    url = httpConfig.prefix + url;
+  }
   return new Promise((resolve, reject) => {
     request(url, {
       ...dealParamsBody(options),