1、修改混入excute方法错误

mixins/index.js

@@ -428,7 +428,9 @@ module.exports = {
       let url = service.prefix + method;
       let param = params;
       // TODO
-      param.cpId = 1;
+      if(param){
+        param.cpId = 1;
+      }
       if (params && typeof params != 'object') {
         url = url + '/' + params;
         param = null;