SAS ADV的一道题

sd215

1494

收藏 2012-02-07

%macrotest(var);

%let jobs= BLACKSMITH WORDSMITH SWORDSMITH;

%let type= %index(&jobs, &var);

%put type=&type;

%mend;

%test(SMITH)

求大侠讲解下为什么是 6 宏值 type

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maidenhan

2012-2-7 07:46:35

Function INDEX() could tell u the location of the first target word it finds in the source string.
Now, your source string is "BLACKSMITH WORDSMITH SWORDSMITH", and your target word is "SMITH". So, we'll see

123456789012345678901234567890123
BLACKSMITH WORDSMITH SWORDSMITH
SMITH