输入格式化要打个圆点，这是SAS教程最基本的知识。但最近看到几个不打点的SAS考题，觉得甚是奇怪，贴出来求大侠解惑。

70-39. The following SAS program is submitted:

data WORK.AUTHORS;

    array Favorites{3} $ 8 ('Shakespeare','Hemingway','McCaffrey');

run;

What is the value of the second variable in the dataset WORK.AUTHORS?

     A. Hemingway

     B. Hemingwa

     C. ' ' (a missing value)

     D. The program contains errors. No variables are created.

Answer: B

（格式 $ 8 居然没有点）

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70-31. Given the following raw data records in DATAFILE.TXT:

  ----|----10---|----20---|----30

  Kim,Basketball,Golf,Tennis

  Bill,Football

  Tracy,Soccer,Track

The following program is submitted:

  data WORK.SPORTS_INFO;

     length Fname Sport1-Sport3 $ 10 ;

     infile 'DATAFILE.TXT' dlm=',';

     input Fname $ Sport1 $ Sport2 $ Sport3 $;

  run;

  proc print data=WORK.SPORTS_INFO;

  run;

（10后面没点）

这两题我都在SAS上run了，而且是打点和不打点两种情况，结果是，打点和不打点的结果完全一样，log里也没有任何问题。请问，这是为什么？难道是新版SAS的规则变了吗？