Mac上的文件在SAS Studio中如何引用

在macbook上访问 SAS OnDemand for Academics-SAS Studio ，但发现路径引用错误，不知道怎么解决
我的文件是存储在如下文件夹里的：Macintosh HD>Users>jin_yu>practice>cert
cert文件夹里面包括了cre8permdata.sas cre8workdata.sas cre8flatfiles.sas

我的代码：
%let path =/users/jin_yu/practice/cert;%macro setdelim;
%global delim;
%if %index(&path,%str(/)) %then %let delim=%str(/);
%else %let delim=%str();
%mend;
%setdelim

%macro makedata;
%include "&path&delim.cre8permdata.sas";
%include "&path&delim.cre8workdata.sas";
%include "&path&delim.cre8flatfiles.sas";
%put;
%put NOTE- ;
%put NOTE- Your SAS Certification Prep Guide data files are ready.;
%put NOTE- ;
%mend;
%makedata;

运行结果及报错内容：
WARNING: Physical file does not exist, /users/jin_yu/practice/cert/cre8permdata.sas.
ERROR: Cannot open %INCLUDE file /users/jin_yu/practice/cert/cre8permdata.sas.
WARNING: Physical file does not exist, /users/jin_yu/practice/cert/cre8workdata.sas.
ERROR: Cannot open %INCLUDE file /users/jin_yu/practice/cert/cre8workdata.sas.
WARNING: Physical file does not exist, /users/jin_yu/practice/cert/cre8flatfiles.sas.
ERROR: Cannot open %INCLUDE file /users/jin_yu/practice/cert/cre8flatfiles.sas.

我的解答思路和尝试过的方法：
一度怀疑是jin_yu这个文件夹名称不对，换成jin后还是不行
是mac的路径表达不准确吗 我在windows上可以跑出来，但在mac上怎么试都不行 如能解答 感激不尽