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发表于 2012-11-13 08:48:12
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1判断语句; G4 U# _3 O' A) n4 ?
if <condition> then
+ N5 k# K5 b! t7 z8 G% g <statement sequence1>;
6 s* x% B# O* v1 j elseif <condition> then( m2 V3 I% H8 b% r4 H7 U) |
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
# Y& _' E; w# o2 f inspect <expression># o; [: a: j* q( S* x) S+ A: w! l
when <constant_list> then' Z$ Y# G# t$ C% \, s1 M
<statement sequence1>;2 d% d, f* k$ L3 L2 o
when <constant_list> then4 ^6 X5 m* R( \; }6 m* l
<statement sequence2>;
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else
0 Q/ a1 V1 M9 L9 p <statement sequence3>;7 B% g; N% D9 q3 M
end;' M% {! ]9 \9 { Z5 G/ p5 r
9 @) N4 p. x: B" e/ r- w$ |9 s3 G2循环语句9 t5 j# @8 V: H" ?4 a! P( _
(1) from <statement sequence1>8 J. y. _' X# D' y% G$ d/ A
until <condition> loop" c: C; w9 e- p8 p) d
<statement sequence2>;
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(2) while <condition> loop
% Y# d' k" c6 G <statement sequence1>;
8 V( }) o7 B# W* @: j$ C8 T end;
2 G* a: ]$ }) l: ] (3) repeat
- C8 w& s* H! ~$ k. s2 C <statement sequence1>;; m% @5 @% d9 J' A. I6 D/ o9 _& @" {
until <condition>;
4 y7 Z& d+ f" N" H5 n% `- ~ (4) for <condition> to <condition> loop' g; g# ]- y: j }9 [7 j
<statement sequence1>;' Q$ }+ K# ^6 q M. x
next;' [, q; y. I: g2 L# w
3中断语句2 T- Y& w) N0 a
waituntil <condition> prio <integer expression>;$ x6 E* p6 I* }1 |* @5 v& K
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以上为常用的函数！
6 C$ d- n9 B, H$ W还有很多，如有需要我把资料发到你邮箱里 2 A1 ?) e& b) q2 |) ?/ I5 @) S
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