d*****6
发帖数: 100 | 1 How many times does this DO loop execute?
data work.trial;
do i=1 to 10 while(x<=4);
x+1;
end;
run;
答案是5， 为什么？我们并不知道x开始等于多少呀
多谢！！ | d*****6
发帖数: 100 | 2 我是SAS新手，问题比较低级。但是我以为DO loop execute one time, x=1,
two times x=2, three times x=3, four times x=4, then this do loop should
stop.
请大虾解惑！ | w***z
发帖数: 28 | 3 when using WHILE, the loop will execute as long as the WHILE expression is
true.
x开始等于0
as u said after four times x=4, x<=4 is still true, it will do loop one more
time | d*****6
发帖数: 100 | 4 I see. Thank you very much! |
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