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发表于 2012-11-13 08:48:12
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1判断语句
6 D" ^" g! R, K if <condition> then/ Q* |! Q& \" e9 ~, n
<statement sequence1>;) b& t9 h+ p& H
elseif <condition> then; z, R* s3 I1 T- ^
<statement sequence2>;/ d1 C+ Q1 s0 C- b2 D
else 9 s$ l8 x+ U' x# X$ ~% g; o
<statement sequence3>;" g# R% n6 F8 d4 p& T" p8 G1 F: S
end;! q$ V8 B/ a' h# r$ A% u! ^! Y; g5 j& }2 X
如果分支比较多，用：8 H3 i: i1 E3 j% r/ J
inspect <expression>
# m" D( a) F) d# i when <constant_list> then' e6 m- ~- d) I K% t& |
<statement sequence1>;
! _2 V9 Z6 s; e' b5 ~+ ~- s" V& t when <constant_list> then
! |7 T8 a6 P, ] <statement sequence2>;
& F* N8 Y0 |# N ...
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<statement sequence3>;
6 R& y! A; d8 v6 H kend;
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( h% F3 q- x6 D5 |9 N2循环语句
9 T1 y+ K! H, R0 w (1) from <statement sequence1>
- o5 u% u3 G5 E( Y6 y until <condition> loop9 _; ^9 p [+ N0 K% e# [
<statement sequence2>;9 g) H% _# d4 ?" I! ^3 |% a9 c
end; H& E9 M {6 M- y
(2) while <condition> loop) Y/ O/ I* s4 ]) L4 ~+ l
<statement sequence1>;
+ D0 N& K8 l( ]7 o I0 X end;- B' g5 n" U+ e% _6 J- _% s. X g
(3) repeat
' e1 i# E8 W" V7 i <statement sequence1>;( N+ n! L& G9 S3 F( R! c
until <condition>;9 G* B4 {$ ^- _; G* C5 Z9 N
(4) for <condition> to <condition> loop
7 U1 O; i B# N, E/ o# E2 ^ <statement sequence1>;
! _" `. p. D; W8 m& c next;
- U K2 e" C0 P4 m+ F7 J+ \) X3中断语句
8 d4 v) P; |0 v& j2 d$ k! O waituntil <condition> prio <integer expression>;
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! y, w) M+ {) L6 t以上为常用的函数！
# c% t+ A) A# [' T还有很多，如有需要我把资料发到你邮箱里 * p. P9 [1 h- d! h( i8 Z5 Q
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