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发表于 2012-11-13 08:48:12
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1判断语句3 F* Q* x" h/ P, F+ ]2 T
if <condition> then
/ b% c; r" _& P$ Q' K2 |4 k <statement sequence1>;
" h4 `5 p$ q. ^% p7 I elseif <condition> then; Y4 Y: m' R5 R
<statement sequence2>;2 d( d q7 R8 N* ~6 P
else
6 k& g0 D8 Y: f4 Q7 t* b <statement sequence3>;
% `' o6 K$ z% d5 X4 L end;
( L8 R1 I2 T" p% L3 m如果分支比较多，用：3 y" ^2 K( p, L8 O
inspect <expression>( @# n( g- @( B" ^ j+ |
when <constant_list> then# j4 x: C# U+ z! p
<statement sequence1>;
9 w+ f$ L8 g) }; J) ^+ I when <constant_list> then4 |( \3 `$ k7 I! d7 h
<statement sequence2>;" z4 ~/ c- w# w, C$ A
...
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<statement sequence3>;
D% Y5 Q; D# G$ Y2 d3 ^end;
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2循环语句
1 o. h, k' E, c5 f z2 M (1) from <statement sequence1>( g7 O# P! A4 S R% [
until <condition> loop; y( g7 G4 J+ _$ M& [/ _3 w
<statement sequence2>;
8 |3 _: J3 a! Y! ] end;7 Y2 ]- m, s3 P
(2) while <condition> loop
: H, W6 t( p8 u <statement sequence1>;6 F8 a, U# ~7 P m7 |' j& {
end;
' k( X9 o' t& E3 i& d* W2 m (3) repeat ; n) o T+ p# T n3 _
<statement sequence1>;
* B" {3 e! s9 `5 Z/ M until <condition>;9 E5 Z a. G$ B9 Z* {
(4) for <condition> to <condition> loop3 w/ I) a+ G2 T: N. @4 U- B
<statement sequence1>;: j% r* |) Z* |0 e3 ^5 }
next;
F4 h) _ X* |. q0 v) i3中断语句2 W- B; Z7 I3 f+ C$ Q8 S+ b& M5 R- d
waituntil <condition> prio <integer expression>;
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k' K# z$ P) ~ D9 ?8 L B& W以上为常用的函数！6 y' P3 ? a: O+ c( Q; \/ g
还有很多，如有需要我把资料发到你邮箱里
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