The following program is submitted:
data fltaten;
input jobcode $ salary name $;
cards;
FLAT1 70000 Bob
FLAT2 60000 Joe
FLAT3 30000 Ann
;
run;
data desc;
set fltaten;
if salary>60000 then description='Over 60';
else description='Under 60';
run;
What is value of the variable named description when the value for salary is 30000?
a. Under 6
b. Under 60
c. Over 60
d. ' ' (missing character value)
Correct answer:  a


[size=13.3333330154419px]想请教一下，为什么0被省略了？为什么长度就是7呢？