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发表于 2012-11-13 08:48:12
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1判断语句0 ?' B- \- d0 v2 f
if <condition> then
- H4 _3 C" }" A- {- Z: G <statement sequence1>;% N G3 F) H; w' y8 Y% `
elseif <condition> then
6 W% K: ~2 B0 U8 J3 {; x/ R& {# K <statement sequence2>;9 l. o% {6 K! R: t8 U0 A
else ' k1 {$ o/ \& J# f3 x
<statement sequence3>;
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如果分支比较多,用:
' M; q9 E" ~4 C5 U inspect <expression>. r$ X' v+ e! J9 v" k% M
when <constant_list> then
K" |- A! ?" M. T( V <statement sequence1>;
: t' [+ O# j! p4 o" F0 v0 e when <constant_list> then
$ g9 I$ }/ ]- g+ c8 W- U <statement sequence2>;
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else
# L& [3 l$ o8 n& ? <statement sequence3>;
p' b* f$ E' ^7 y: k/ a* Cend;
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2循环语句
5 V1 c1 L; r4 c* w) Y (1) from <statement sequence1>
# m5 j- H3 J- { C until <condition> loop
: A( ^* ?- Q3 t9 i <statement sequence2>;( E* u2 W4 {* E# ^ y6 ^. Z
end;
; v7 D9 \5 Z5 c/ ^- p P (2) while <condition> loop
/ G! P: O. g7 \$ e <statement sequence1>;+ b/ E `0 z$ U% b
end;
/ W) G% s/ n' O/ v1 x3 y" S (3) repeat - l6 A$ b4 R' e# q6 K& ~
<statement sequence1>;4 k6 N. g6 h: ^, l; W
until <condition>;& e, f# y0 O9 H4 |% [
(4) for <condition> to <condition> loop
2 t# J. b$ O7 r& ^3 a r <statement sequence1>;
3 ~6 R# z) J9 m' _4 P next;
& J( Z1 e, b- \6 \ p3中断语句2 {" `& |- l+ o2 M5 a3 e) U
waituntil <condition> prio <integer expression>;
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以上为常用的函数!& x- D/ _( ~4 k- j# J# x
还有很多,如有需要我把资料发到你邮箱里
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