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发表于 2012-11-13 08:48:12
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1判断语句$ I& {7 @2 D7 F% R6 h! t6 c K: B) C
if <condition> then
1 O6 D) h+ ]2 O) Q' A) n; } <statement sequence1>;! [% C; M% f4 Y5 D
elseif <condition> then/ E2 v2 \5 z* F) R: _0 C
<statement sequence2>;
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<statement sequence3>;! [% z* A1 h$ m5 B7 b
end;5 B& E7 l$ }$ I) D) ]* m2 S
如果分支比较多，用：+ w9 W0 B& w" r" h" C" q' [
inspect <expression>8 e0 [- i- S5 W' i* V) V
when <constant_list> then3 w- h1 v9 H& D; p5 U$ D0 Y* F
<statement sequence1>;
7 L& Z, m {9 W when <constant_list> then7 X8 x, _+ Y- B; B7 [/ M- H
<statement sequence2>;# Z, T" r# B; b6 T2 \- z
...
0 l2 Q& \: z$ m" I else
$ R* [. k* Y/ P& n, E# i' n <statement sequence3>;" @* V* ~! ]: [, F, k" o6 {$ h
end;
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2循环语句
( p- y7 c9 r6 s (1) from <statement sequence1>
& d6 u" l9 V8 Q; p until <condition> loop; k% T9 Y% `0 C! v9 \# C3 M& ^
<statement sequence2>;
2 E' \4 z! L e; S3 }& d1 ` end;' k7 r) y# d4 s: z
(2) while <condition> loop9 k; n4 ?# [! j+ L
<statement sequence1>;
6 \) q$ K; j3 ]; R end;$ V* a: {! f# }: R
(3) repeat 4 [0 q5 w2 R8 d' L# e. \
<statement sequence1>;* }' ?7 m0 |1 k7 q
until <condition>;
' M# l1 M1 w+ X0 K) x! W' B (4) for <condition> to <condition> loop* _- P7 U: r5 J0 m
<statement sequence1>;- ~+ }& Y, W7 p' ^# \
next;6 [% e8 w+ X! D+ L; ~0 A
3中断语句
0 ]5 ~& U' }1 m+ V# v q waituntil <condition> prio <integer expression>;" u1 _$ P8 W+ d% Z$ x, C
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以上为常用的函数！
# K! q, d% D- h, l& l5 i还有很多，如有需要我把资料发到你邮箱里
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