SAS只有数值型和字符型两种数据类型

data x;
input k;
cards;
19840123
;
run;
data y;
set x;
a=compress(trim(k));
length z1 $10.;
z1=compress(substr(a,1,4)||'-'||substr(a,5,2)||'-'||substr(a,7,2));
z2=mdy(substr(a,5,2),substr(a,7,2),substr(a,1,4));
format z2 yymmdd10.;
run;

data new;
input date yymmdd8.;
format date date.;
datalines;
20010101
20020305
;
proc print;run
;

我也想学习。。。期待高手。

data test;
  input num;

  date = input(put(num, 8.), YYMMDD8.);
  format date YYMMDD10.;


cards;
20010101
20020305
19970701
;

proc print;
run;