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发表于 2012-11-13 08:48:12
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1判断语句$ k! p! m- j* F( o e
if <condition> then
( V+ a% x2 m% V2 p <statement sequence1>;5 i$ \1 m3 X1 x5 K8 x2 l
elseif <condition> then; u5 r( O2 U, L3 D" J4 o6 ?
<statement sequence2>;
7 g+ M& t q+ R else
4 Z/ `0 }/ U6 u <statement sequence3>;
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如果分支比较多,用:) P0 B; G( @" l5 z" k
inspect <expression>4 [) Q- a9 s! J3 R4 ~1 l/ t
when <constant_list> then
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when <constant_list> then
2 L/ y6 g& K3 g) k. b q <statement sequence2>;5 k( `! U b- D1 x/ }* H
.../ U7 m3 O( B4 }1 H0 a
else9 J# E0 {5 C4 y; k L7 l
<statement sequence3>;0 d. d9 a" {9 W7 w0 P& H5 P7 o
end;
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2循环语句; g1 B5 M+ T( J) ]/ M! z
(1) from <statement sequence1>
, y) B0 J0 W1 Y; ]. _# @ until <condition> loop
) O! R0 `5 a8 w+ e <statement sequence2>;
7 u, _. A% W! @# y0 V5 u) z end;( P% V8 N: k8 X2 L+ N4 s! A" m
(2) while <condition> loop" [/ f2 M/ _# Q, [/ y: {
<statement sequence1>;
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(3) repeat
; P( h1 t% |+ h P3 j' ? <statement sequence1>;
% i' R- t* J4 S# x2 }/ H8 o9 R/ I7 I until <condition>;7 L" ]% R) u+ N1 Z. Z; ?# C
(4) for <condition> to <condition> loop% H- I# x S) \/ J4 H
<statement sequence1>;
2 Y" X# c+ h9 j" k next;
9 Y( N% T* c& e/ @2 F3中断语句6 x2 V% G6 Q/ Q& w
waituntil <condition> prio <integer expression>;
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+ O7 R% n5 N8 a1 [) V) ]0 { D以上为常用的函数!
; P5 Y+ @" j3 _1 C/ V( v还有很多,如有需要我把资料发到你邮箱里 + p: z3 R! o4 S! }2 p, q# b4 B
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