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发表于 2012-11-13 08:48:12
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1判断语句3 y3 W7 C( N, o2 A/ h
if <condition> then$ b v& W9 t. L2 ^9 V' a
<statement sequence1>;
! m8 Q0 R% D( y' k' G& A. J( U elseif <condition> then
/ c2 C4 a7 B5 I$ X! L* g7 {* ]' | <statement sequence2>;/ C4 N ]5 D7 A/ M9 I/ G" s4 i
else
# `* I3 Z7 D% @8 ~ <statement sequence3>;
+ p' L6 x+ \( x3 y end;
1 _; {+ b3 O; T0 z; v/ `3 V8 |& }如果分支比较多，用：9 n' S: Y" H$ k) K5 Z3 a: K
inspect <expression>
1 _4 J& V1 N7 M4 Z6 J. `9 O when <constant_list> then
( T5 j6 X5 u$ s7 n6 b( M' h5 L <statement sequence1>;+ e4 s7 C0 ^! i( t5 y# A5 ?+ T
when <constant_list> then
. i* I5 }" V8 s& ^" s1 [% L$ G/ { <statement sequence2>;2 x& o/ R# s* c% \
...
* |: d' k2 n0 |7 h* S" R# I else
& A* c" _( ~) v5 i$ U; D" ~* ^. b+ z <statement sequence3>;
; r# p8 t; A$ o+ ~, }* Y# A9 Rend;$ a# p0 f$ @+ Z4 j
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2循环语句! Y) E9 C" B# `* A- U$ A( M
(1) from <statement sequence1>$ N* D: m- H0 p7 d) {5 c9 `+ P
until <condition> loop# V: x/ z( I* E4 r4 N- F1 p. N+ n" S
<statement sequence2>;3 o' A; f$ S6 {7 { y( t2 @* G
end;
9 Y) L, W& a5 I% ?. Z2 o (2) while <condition> loop
; W) n( b% Z% X <statement sequence1>;, d! O0 W2 f4 b C5 b' N
end;
. e# F6 A: ^) j (3) repeat
/ Y k/ \+ q/ a <statement sequence1>;
$ j, ]+ W- |; ~2 W: M3 g: k" F c M until <condition>;
* C) A+ k. r. Z' T: r (4) for <condition> to <condition> loop
3 _4 z" l1 v/ }% h$ } <statement sequence1>;# A, r$ L6 ]2 b w* N3 o
next;! K1 ]% m# B) e5 P& n9 Y; v3 ]! |+ ~( ]
3中断语句
5 T. y. S' C: q! t0 M$ w, a9 y waituntil <condition> prio <integer expression>;
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以上为常用的函数！: ^1 N) W. m* O1 J
还有很多，如有需要我把资料发到你邮箱里
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