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发表于 2012-11-13 08:48:12
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1判断语句8 R9 J8 V( u. `. R5 G: p5 w
if <condition> then6 g y- J! H& B, X- @( O7 F% X
<statement sequence1>;
4 g7 p8 y4 g5 Y( k8 C) B: E elseif <condition> then
+ y' U$ w+ K( V, j* ] <statement sequence2>;' ]: x' s+ c+ g. Y& N
else * X) C6 \' F2 r' `/ D" O3 c
<statement sequence3>;0 x8 ^, r- F1 g+ T; e6 R6 L! z1 Z
end;- A( U( T- x* h- O+ W5 |: K
如果分支比较多，用：
2 s7 W( ^+ i1 Q, n S, d* f inspect <expression>
& V% [3 C! \9 ]+ w when <constant_list> then
) d b; c& w/ ]6 l4 { <statement sequence1>;7 r6 K ~$ d) E/ ?0 r+ v: y
when <constant_list> then& n& l, V$ u; r# ~ s9 p
<statement sequence2>;0 y) f+ _6 Q* Y$ U, F+ f. V& G
...
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<statement sequence3>;
; T; l2 @6 g2 f7 Nend;
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2循环语句
: ]9 X$ W# D1 K; I; f (1) from <statement sequence1>
( K/ B9 X% }, q0 ] until <condition> loop
& Q- X: e1 i Y3 d C7 j- g# Y <statement sequence2>;. t/ T4 x$ o( z3 L: x
end;1 Q$ s' @' f [( s" D1 o: a
(2) while <condition> loop
( W# n2 I5 @/ x3 ] |4 Y# P <statement sequence1>;1 @. i2 b; a {+ Y8 O
end;3 O. ]5 u3 f0 M1 M+ v6 ~3 p3 K
(3) repeat
4 s4 Y9 @3 ^2 h9 Z- d7 ? <statement sequence1>;+ r) k- q' I: o
until <condition>;
5 l9 q: |- ^ `9 S! w (4) for <condition> to <condition> loop
" C2 H; O% {: M# c1 } <statement sequence1>;
2 t. R3 R) L/ t2 K" w next;# T: n" p! `4 T7 N
3中断语句; e4 s4 _/ _( @: m' p$ ^: V$ \
waituntil <condition> prio <integer expression>;
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以上为常用的函数！: k8 G1 s0 n9 @4 {
还有很多，如有需要我把资料发到你邮箱里 % ?* C6 y' d) l1 L" d
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