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发表于 2012-11-13 08:48:12
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1判断语句
) C2 c0 a" m/ d: J1 S$ t5 {% t if <condition> then
# j" x+ O& f5 i <statement sequence1>;# d. n$ L( a% B9 X9 m1 x3 H( P* h' O
elseif <condition> then8 h- A0 n- G4 P! h! e# |1 X4 M
<statement sequence2>;
5 G2 I7 @+ J2 D9 p1 X- z else
8 L+ O2 R+ c9 I& ~3 Y <statement sequence3>;& d/ c: N( L j( Q" Z8 U
end;# U& C6 V+ Q, M! B; F* @! m+ s
如果分支比较多，用：
6 [- Q6 x7 U1 O# ~" u inspect <expression>
9 H# w; z9 h, I* r/ e$ V! w' _ when <constant_list> then
4 E7 I4 B+ @" S% K, {- f# p <statement sequence1>;, q# m' z6 ~; q, Y( A% a! K
when <constant_list> then
9 r: S% B! w* h1 {5 K <statement sequence2>;' ~8 B" F! k. B+ E2 h+ h
...6 O- `) B+ O- g* O
else6 \( c& O; ?! I; G$ E+ n
<statement sequence3>;9 h; @0 r! P4 F) t& z+ t
end;
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2循环语句
, f& Z5 m* R/ a1 | (1) from <statement sequence1>
3 ?6 g/ Z: P$ N9 D until <condition> loop7 s; s! `' v( g# C+ S
<statement sequence2>;; J7 X, @8 |1 }& B, J
end;
# v5 H; a3 m6 T1 u; f, g" [ l0 t/ o# w (2) while <condition> loop
. i1 Z Y3 G& q5 s <statement sequence1>;
* Z* E' a3 K ?) T3 R* P* S end;* {& ^$ T2 L& } P! _4 o) W( j
(3) repeat
7 S) N. J0 X7 s' R/ | <statement sequence1>;
% s' W9 ^: I( o- @* |& F& A1 d until <condition>;
9 d7 n* `! e* q9 k9 g (4) for <condition> to <condition> loop6 O( W# C. o- f4 k$ l
<statement sequence1>;$ _7 z7 M" s! G5 N5 q
next;
+ W! Y8 ?/ {" x, L8 ^' O3中断语句& u' P2 {9 d5 x5 b0 V
waituntil <condition> prio <integer expression>;2 o' Z. z: L( I% A3 F
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以上为常用的函数！: H3 e4 L* v/ F; D$ X$ n; T
还有很多，如有需要我把资料发到你邮箱里
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