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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
! \ A, ]4 H, L: {) T if <condition> then" ~. R$ `6 g- J' l0 [
<statement sequence1>;! r. P& M6 Z g, g3 ?- [
elseif <condition> then* K: B9 f9 m4 i! N# f
<statement sequence2>;6 N" D1 Q$ i# k9 S: A9 M4 r7 D$ W5 `
else : j+ F- a- E/ ]& [/ z
<statement sequence3>;
% y; w' a1 e% ?# z2 j end;
, p1 P2 C0 n" @9 i% i+ Y/ {9 u如果分支比较多，用：+ v1 k5 E k8 E6 C0 ^
inspect <expression>
' I8 F0 S7 k8 Z when <constant_list> then( [7 j- V( v9 ~# C* w
<statement sequence1>;
8 z! s* }, o8 v+ r& F when <constant_list> then% b: x) P5 a7 q3 T2 a2 j- ]
<statement sequence2>;
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<statement sequence3>;. x3 l& k' Z6 I
end;& R1 o0 C5 B$ ?) B! c
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2循环语句
9 b' [/ B) j0 O$ j- q (1) from <statement sequence1>+ ]# @9 O \0 s9 v1 P( s
until <condition> loop' E- z! r% q% `: I. @! G
<statement sequence2>;# o$ f1 C2 @' W7 Y2 j: V
end;8 D) t+ q6 U* {# \) i7 P
(2) while <condition> loop6 o+ y+ E- v+ d0 J4 c
<statement sequence1>; {! C3 F4 m) Q! M- B9 B- g, V+ x
end;' f; V: C i5 _' |2 w
(3) repeat 7 Q' z; u: }3 ?" M# l$ |
<statement sequence1>;. z# x6 f1 V; m. I
until <condition>;+ b! m% B' H5 d- W6 S- d! Z2 c
(4) for <condition> to <condition> loop
% a; a/ r: {$ i( w <statement sequence1>;
4 U% o. u. F, y3 q# X6 I next;9 K$ [/ f2 T9 y! z! W4 t
3中断语句9 o* }3 Q5 H( P; w- i
waituntil <condition> prio <integer expression>;- i ?% ~7 g! ?
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2 X0 I3 Z/ I& X+ W以上为常用的函数！
! m+ B; F- t8 \/ i, n9 R# w" K3 c还有很多，如有需要我把资料发到你邮箱里 % b) L. ?1 l: z% K. S. a$ I
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