【SAS BASE】SCAN函数

 1 【例子】
 2 
 3 data a;
 4 arg=‘ABC.DEF(X=Y)‘;
 5 word=scan(arg,3);
 6 put word;
 7 run;/*word:X=Y*/
 8 
 9 data b;
10 arg=‘ABC.DEF(X=Y)‘;
11 word=scan(arg,-3);
12 put word;
13 run;/*word:ABC*/
14 
15 data c;
16 arg=‘ABC.DEF(X=Y)‘;
17 word=scan(arg,-20);
18 put word;
19 run;/*word:空格*/
20 
21 data d;
22 input Arr $ & 22.;
23 ArrivalGate=scan(Arr,1,‘ ‘);
24 DepartureGate = scan(Arr,2,‘ ‘);
25 put  DepartureGate  ArrivalGate arr;
26 cards;
27 Arrival DepartureGates
28 
29 run;
30 /*结果：ArrivalGate:Arrival；DepartureGate：DepartureGates*/
31 
32 
33 data e;
34 input Arr $ & 22.;
35 ArrivalGate=scan(Arr,1,‘ ‘);
36 DepartureGate = scan(Arr,2,‘ ‘);
37 put  DepartureGate  ArrivalGate arr;
38 cards;
39 Arrival,De d, ssd liu
40 ;
41 run;
42 /*结果：ArrivalGate:Arrival,De；DepartureGate：d, ssd*/