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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& E8 \# P f) P# {
if <condition> then
5 e. b; g- } s3 Y5 k" n1 n <statement sequence1>; c) A; K+ Q5 x! R- I7 Z3 q
elseif <condition> then+ ^" z1 S1 {3 r/ f" m @1 N3 ?$ ^
<statement sequence2>;4 S7 W) t/ K1 Q J! K6 x. G
else - ^. E& [4 E* W* N( F/ V4 U [
<statement sequence3>;
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如果分支比较多,用:
' j$ i: s* x5 w5 L9 V* P9 P5 [- h inspect <expression>" ^' `1 n3 d! f' Y
when <constant_list> then
% n- C9 o E5 }- F8 F <statement sequence1>;
6 `; s4 r9 Y* Y% n when <constant_list> then6 O6 h1 h3 T7 V# O2 c) p% g7 \8 @
<statement sequence2>;
+ f. |' V* J; E Q ...
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end;! D3 S h1 z0 g4 {9 i6 Y
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2循环语句
& f0 \$ b. f$ y+ z (1) from <statement sequence1>+ I. i; A8 u/ ]' A" _
until <condition> loop
# g1 U+ K& t9 W6 t! ^( J% \ <statement sequence2>;
2 U+ P; f+ l! y# E; y, O7 O; m end;
9 ^$ }* a! ?: Y4 y! Y (2) while <condition> loop+ ~0 z2 \5 M5 O2 f% w1 p
<statement sequence1>;
0 E8 p6 ~4 V( A/ P/ |/ Y end;
! }4 `* B3 X3 i7 e* V( Y6 ?$ v! L (3) repeat p9 g2 X1 {& p
<statement sequence1>;6 g: R$ V8 q! O% ~+ E, |0 l
until <condition>;
# D! H6 @. e' v. |# A! z8 J (4) for <condition> to <condition> loop z! @4 x* N* ~- k; {
<statement sequence1>;. v3 l" F3 K2 Q. ~4 F* S5 ^
next;
* I, T+ M# v. f+ J3 }' f3中断语句$ l& S, K, V& n2 @8 \ O* i f2 W$ ]
waituntil <condition> prio <integer expression>;( m' d1 N4 K6 \* K2 w
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以上为常用的函数!/ F, R V8 q8 ?! u% \% Y
还有很多,如有需要我把资料发到你邮箱里 2 \- `4 H* W8 q: U& O
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