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发表于 2012-11-13 08:48:12
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1判断语句
4 }; { r, ^9 P0 Y, G if <condition> then
8 }# x I5 g3 h; c <statement sequence1>;+ l4 @+ y7 q" \' H
elseif <condition> then( ]; m7 V2 c& |& N1 W
<statement sequence2>;
. G: n6 Q- a6 c R# X" s+ h6 l: o, D* K else
2 B: L8 L2 x) G8 t. D <statement sequence3>;
+ y; C7 C( o5 F" U6 i N* K2 r end;% u5 N: ?( ?- Y
如果分支比较多，用：
. C, a, v# o) ] inspect <expression>( O4 @3 k4 c2 C6 _ M) c. O" W; o+ \8 \
when <constant_list> then, I3 j+ R$ ^# x1 R0 d+ L
<statement sequence1>;2 {# E8 e V# ?+ B% a$ n" _
when <constant_list> then1 {9 Z; U* c+ ~( `
<statement sequence2>;
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else: i- m9 @8 R/ L! d! Q4 m
<statement sequence3>;
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, k8 v0 G& d9 D4 R2循环语句
# g3 X$ G w: K7 y: h. ~ (1) from <statement sequence1>
W1 g, G' M& T* o4 f9 f5 l until <condition> loop) b# ~9 O. @8 W6 D9 U
<statement sequence2>;! t @6 O8 h1 Q: c- j
end;
+ _1 T* o1 C4 W: k! { (2) while <condition> loop( o2 [2 j* ~' P1 u& |; m# Y% V
<statement sequence1>;5 @/ q0 e5 |; g" h% v
end;: ^* Z# [% g# h4 Q1 N" F- @
(3) repeat ; P: B3 s1 `6 u/ W
<statement sequence1>;
6 J; j1 _0 s+ K& p: Q1 E: R1 Z until <condition>;1 r |. I! x0 E. r! Q, e3 V$ @
(4) for <condition> to <condition> loop1 P7 F/ p" ~- M" o$ X4 ^4 i) g& Z' ^3 q
<statement sequence1>;
2 I+ _% u- M" W3 A/ `4 T$ W4 A next;
9 H" f0 G- i: z7 q2 j8 ?! r. y% u3中断语句
8 \9 c- I4 w$ r2 R8 E0 Y/ H waituntil <condition> prio <integer expression>;3 X, w# D E9 ~. R B- b( l
" Z) z8 L# y2 w S6 n
1 O" v' x4 ]4 s4 u9 ]; h
以上为常用的函数！& R7 J4 o5 h) `: m
还有很多，如有需要我把资料发到你邮箱里
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