h****e 发帖数: 950 | 1 question 76
The following SAS program is submitted:
data test;
author='agatha christie';
first=substr(scan(author,1,','),1,1);
run;
Which of the following is the length of the variable first in the output
data set?
A.1 B. 6 C.15 D.200
答案是D, 那位给帮忙讲解一下。多谢了 | A*********u 发帖数: 8976 | 2 first这个变量第一次出现的时候,等式只要有Scan(),长度就是200
question 76
The following SAS program is submitted:
data test;
author='agatha christie';
first=substr(scan(author,1,','),1,1);
run;
Which of the following is the length of the variable first in the output
data set?
A.1 B. 6 C.15 D.200
答案是D, 那位给帮忙讲解一下。多谢了
【在 h****e 的大作中提到】![](/moin_static193/solenoid/img/up.png) : question 76 : The following SAS program is submitted: : data test; : author='agatha christie'; : first=substr(scan(author,1,','),1,1); : run; : Which of the following is the length of the variable first in the output : data set? : A.1 B. 6 C.15 D.200 : 答案是D, 那位给帮忙讲解一下。多谢了
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