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发表于 2012-11-13 08:48:12
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1判断语句! i1 t- {$ G! D+ I2 r' \5 Z- S `
if <condition> then
& z0 H* |3 o+ t h" ^) f; h <statement sequence1>;0 V+ P9 d# K8 _
elseif <condition> then
# q8 g6 Y% Y# c( R* |. ` <statement sequence2>;- n3 e. p$ e- ]4 q( P! k& {3 V
else
4 c( M$ \3 P% G `; h <statement sequence3>;5 R, _+ r% A6 l# R1 h6 Y
end;& r6 q" S4 `* j5 f
如果分支比较多，用：
1 a& k0 N9 x, w% K inspect <expression>
6 b! `1 q g+ n- M* f# l when <constant_list> then
& p: y9 b; G, L' e <statement sequence1>;! g2 e5 _8 f4 a$ Z g" {
when <constant_list> then0 T6 ~$ X4 @* c8 J
<statement sequence2>;
* B2 o. X @# U, v ...
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<statement sequence3>;) V4 `4 y/ d' }# m6 \8 _# _
end;
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, B9 A0 P( Q; i: l9 H2循环语句
0 i; ^7 w+ Y. W+ q) V. V (1) from <statement sequence1>
$ g2 D% t/ u% @8 D% ~" t7 S& Z until <condition> loop
8 F3 m9 Z* q1 X* d+ G* S9 Z <statement sequence2>;
; c8 ^# j% O5 T. b5 u" E- N ^ end;0 S% f2 O+ y3 _) b+ J7 I
(2) while <condition> loop1 A7 i# Y- p9 n, O
<statement sequence1>;- V3 L; F4 \8 e8 s7 E% R" E+ I
end;
" W) H2 b* C) J8 E( R* [7 B4 f9 { (3) repeat D/ k$ N( X! E$ s' s$ O
<statement sequence1>;* D% p( u& O( C4 _6 T5 ?
until <condition>;
. w/ I2 n8 h, H (4) for <condition> to <condition> loop9 T V( ?& N, g- A0 b. X1 W8 m* s
<statement sequence1>;/ g- P. [. p9 h- z7 n, p# o
next;( p/ O$ R3 Q5 D$ p7 M3 H! K
3中断语句7 x; G; ]- g1 p1 U/ s
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
% j5 r6 ]. r8 m1 P; }还有很多，如有需要我把资料发到你邮箱里
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