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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
; s0 L) J9 ?& P& N. T( M if <condition> then8 S1 `" J! F4 D$ f. E5 M
<statement sequence1>;; G. [8 K8 L$ h9 J; T
elseif <condition> then
% v5 I/ H0 T& e" f8 v* ] <statement sequence2>;9 T3 b- A" I2 }" Z
else
{5 G0 |. B7 Z4 @4 I <statement sequence3>;
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如果分支比较多,用:/ L0 Q: n% L: H2 a+ C e
inspect <expression> x4 F$ f! Z" S) q3 A5 [3 t
when <constant_list> then& z e# W- w* Z. K4 w
<statement sequence1>;
. [, j1 k2 M/ p* u when <constant_list> then' m# e! _5 [7 L$ X
<statement sequence2>;+ i: j8 @7 B2 S0 I' D0 ~1 q
...
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<statement sequence3>;6 ~8 ]* q& X. ]0 d9 y$ M
end;
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2循环语句
. f- j/ x, i: U, K& G (1) from <statement sequence1>' F6 b5 Y8 G" I3 `1 [
until <condition> loop
- x) R6 v. g: j: S' y7 e4 g <statement sequence2>;
3 A) l% A P. U0 K! W+ \ end;
]) c& x: R4 p" A1 x$ y( y (2) while <condition> loop+ Z# D5 y# I9 G& K' g1 [% N# E
<statement sequence1>;6 U+ I7 w0 i- j: Z- I+ F0 n
end;
( z. h3 T" Z, X. a2 \- V (3) repeat ; P+ T0 C2 n1 ~2 G6 l8 o' D4 Z
<statement sequence1>;
2 z5 ~% T: T- y# o7 R& `3 j until <condition>;
( P: M! V$ E0 `: ]& Y) L (4) for <condition> to <condition> loop
, T% A1 u; Z1 M% |7 d- x <statement sequence1>; ?9 t! B, z& ~5 e1 i( P
next;5 C0 G0 Z, L# K( D( }# {) y
3中断语句- ~( G2 W. g! w, l8 p/ V" e& N
waituntil <condition> prio <integer expression>;: h+ r4 L" M( u% B. m: N
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. ?# q7 I+ Q$ s% R以上为常用的函数!
' n3 x: q, @# D5 }$ e还有很多,如有需要我把资料发到你邮箱里
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