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发表于 2012-11-13 08:48:12
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1判断语句- Y' y- }5 A. B/ _8 q. ^$ t
if <condition> then7 M1 Q1 X$ \' T+ K
<statement sequence1>;& |6 j& G. z6 ?( ?
elseif <condition> then f- ?, R. Y- S0 Q
<statement sequence2>;! Q1 ~# z: l8 g1 j8 O
else . J! `1 A4 I3 N
<statement sequence3>; r$ q" Y) V5 n) G# J0 v, ^. l
end;
. Y3 u& q# |* Z& w% f如果分支比较多，用：( ]+ u- i- _* T5 P, `* L6 ]
inspect <expression>
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<statement sequence1>;6 N" y" }: z: }" l! ]9 y( F- ]
when <constant_list> then
! y3 O% ~+ c! l6 y5 T( J <statement sequence2>;6 I, e) y9 J3 D a7 k
.... \& }- x, K. `( X# u T. E8 d
else
0 R4 L/ Z1 u% Y2 f/ M <statement sequence3>;9 M$ z! \1 [( i# w4 o
end;/ Z. J9 p- F( i6 F" \+ @
# g: M9 O8 {' g2循环语句! @7 S7 d8 E: Q( f% q
(1) from <statement sequence1>
; R* {* h6 T! p8 F8 t until <condition> loop
8 v; w+ ]$ L! U# N7 t <statement sequence2>;
4 y, C* F' k) r1 c2 t* Z5 x8 Y end;
! c6 F% d% _3 {$ {5 t( n (2) while <condition> loop( _# f- g. x9 `' o0 n) w
<statement sequence1>;& i6 b( q# c4 T+ k% g) X5 X
end;* t6 g4 p6 w) ~( @) v
(3) repeat # J( |! D% k" g! B
<statement sequence1>;. D' k' @" @8 j; ?/ w! {
until <condition>;3 G! r" M/ L0 C5 J
(4) for <condition> to <condition> loop
) C0 N& z+ k$ H1 Q <statement sequence1>;' A; o+ K/ m0 `) F7 C' r# T" A8 K
next;
6 I, x9 e# E: f3中断语句
9 X2 r: t) Z+ D2 F( N, P% P waituntil <condition> prio <integer expression>;
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. n% @' Q9 z/ Y% O1 ^/ t( F以上为常用的函数！
% O/ F; T! Q% N; e1 V还有很多，如有需要我把资料发到你邮箱里
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