以把sashelp.class数据集导出到C:\Users\lgf\Desktop\1.txt为例，代码如下：
data _null_;
    file “C:\Users\lgf\Desktop\1.txt” dlm='09'x dsd dropover lrecl=32767;
    if _n_ = 1 then do;
        put "Name" '09'x "Sex" '09'x
            "Age" '09'x  "Height" '09'x "Weight" ;
    end;
    set sashelp.class;
    format Name $8. Sex $1. Age best12. Height best12. Weight best12. ;
    do;
       put Name $ @;
       put Sex $ @;
       put Age @;
       put Height @;
       put Weight ;
    end;
run;