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发表于 2012-11-13 08:48:12
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1判断语句& L3 ^# S0 {( P
if <condition> then
3 }. Z5 ]. W. P, I$ K" b <statement sequence1>;
! s, }4 x6 X7 e! M* ?. H elseif <condition> then
7 q) @ z. _" w/ r* p: ~, T' N) O <statement sequence2>;; K/ E+ R7 A' `; y
else 5 L# K5 e4 ?1 ]- T( u
<statement sequence3>;: Q" _. n# g& R# |
end;7 I) D+ {7 N! {* _8 ]& i E6 X
如果分支比较多，用：
' k6 u% M3 [- ]3 Z inspect <expression>! a* } p+ A4 M5 t
when <constant_list> then# N# t* a4 \4 M2 I1 K* h
<statement sequence1>;
# [8 ~; P2 d% o7 L. @( |6 o when <constant_list> then
5 X+ G! N* y8 b8 i <statement sequence2>;
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else
! `" @' g1 e$ ]0 A: d <statement sequence3>;0 j9 \! d6 }4 q* Z( R
end;
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2循环语句
1 q/ g, k4 ^1 |4 x8 b (1) from <statement sequence1>
, P$ K1 {% @3 I- F0 ]: j until <condition> loop! _! |! S7 O+ r$ k
<statement sequence2>;5 q ?) N- v% K( H
end;2 e! W9 k0 p$ c R6 [
(2) while <condition> loop1 G" l0 u3 `% e) q1 Q2 l7 \
<statement sequence1>;9 \2 Y ^ B1 `) T) `0 T, U* I
end;
9 x! k! S9 O3 t* ~- t& g. Q& K (3) repeat
& m2 |2 R f2 |2 e9 a+ {% B: y6 F0 [ <statement sequence1>;
' F9 m7 n& F3 k! u+ r# y until <condition>;
: m3 G) g- P+ M* N (4) for <condition> to <condition> loop* X4 X$ B R+ s0 F
<statement sequence1>;. W0 X8 E0 C0 e2 P3 i# y* o$ |0 C7 Q
next;
8 c' w7 F9 n1 @$ q! V* r6 \ T3中断语句
4 K& u7 z5 g1 L- [! h waituntil <condition> prio <integer expression>;
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以上为常用的函数！0 B- c6 V$ @. x( l
还有很多，如有需要我把资料发到你邮箱里 1 [: \* G, K7 k/ _! {! ]1 | G0 i
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