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发表于 2012-11-13 08:48:12
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1判断语句
' t* j. u4 V2 \1 L if <condition> then
t" W9 U. J" E2 K$ v8 @ <statement sequence1>; M* u1 R3 ]: b! V+ a( I- ~0 F$ L
elseif <condition> then
% x4 Z9 \$ T$ G; V; S6 g { <statement sequence2>;0 L( }+ B3 U* P6 }% V& t
else 1 |9 t* c' u, I- G/ j/ _
<statement sequence3>;
, ~0 z6 m& Z! A: V4 g( a8 d A( Z end;
7 C2 T$ B/ X( f% n如果分支比较多，用：
* E% m! K( d! _! e$ r2 E inspect <expression>
`6 L0 }$ y* I& ?- {2 x when <constant_list> then# w9 ~, I5 o: p: g- a
<statement sequence1>;
2 \; y+ s, q! P9 K$ d% n when <constant_list> then
3 c: L5 x3 Z$ H! ? <statement sequence2>;
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else
4 }6 [$ g9 h# s: a+ a <statement sequence3>;" n: D. `2 F! R6 G& T; |( e9 a
end;
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0 U. i. [; m X, g0 n. R2循环语句) `- @$ H& l, h6 l" |- G# _
(1) from <statement sequence1>! L2 f' m* F5 I6 ?
until <condition> loop- a9 h6 @- `! B& r) Z; H2 x
<statement sequence2>;
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(2) while <condition> loop
9 E7 H8 \0 E* B1 [& s6 ` <statement sequence1>;
; t3 G( c8 m' I+ f8 P0 V' I3 q5 Y end;) L4 Q. Q. v5 y! a
(3) repeat . U. a* W e2 K% D* x% o' M
<statement sequence1>;# b% T8 B: ]6 _) c$ w; M
until <condition>;
R( k {; Q5 Q; [% A3 q% [+ f, F. V# k (4) for <condition> to <condition> loop8 O* B4 m+ N; L( w/ @2 ~9 f5 n V M
<statement sequence1>;$ k4 o$ p& _ p* g
next;2 I* E) H( C/ V1 V6 R
3中断语句1 c# F& o; F* M& J- Y- ?
waituntil <condition> prio <integer expression>;
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以上为常用的函数！( T g2 g1 K2 b+ S) ]8 d/ g- m
还有很多，如有需要我把资料发到你邮箱里 # o7 m4 R( [! j: G& ]
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