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发表于 2012-11-13 08:48:12
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1判断语句
2 e$ f" e, o/ F1 u4 n8 _ if <condition> then3 x5 n: C0 G, _% t1 \' {
<statement sequence1>;/ U; L8 V" q0 M
elseif <condition> then# o5 N6 K$ u( s8 b) e
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
1 O+ o1 P# m2 d& ^: p J inspect <expression>
O, _5 a7 `* s! H, q when <constant_list> then
) L- f5 S; @9 m: K( a <statement sequence1>;
5 Z" l# Q' L K% V, c( \ when <constant_list> then0 W0 N0 R8 U3 p9 D* w+ l* L# `
<statement sequence2>;
! G; ]/ D+ A. d0 t& Q ...
! \4 ^. I% F1 R/ X: T3 v& c8 n$ @ else
# h1 t7 T! D+ E6 ^1 t$ ~" T <statement sequence3>; \6 P. D: O- |0 V! r3 M+ y$ e
end;
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: b9 N* @( Y* _2循环语句$ w/ y5 N9 _1 h6 E# G& w! o( x2 l
(1) from <statement sequence1>
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<statement sequence2>;5 o3 X$ N+ A' A. \
end;
5 u0 p$ d+ L, o0 G/ k' m { (2) while <condition> loop
2 g' `& b2 I- T <statement sequence1>;3 m4 Z5 L* u+ P- M5 O
end;: G6 s* ]% V! P" D+ z
(3) repeat $ k8 @5 X2 |7 W
<statement sequence1>;
Z( L6 j/ F$ A- G, d/ Z until <condition>;; _+ a# T: h: J( ?% a
(4) for <condition> to <condition> loop+ V, \5 g" ~4 y: | q0 {. ~0 n
<statement sequence1>;$ n O9 Y# k% T6 ^
next;/ K' ?1 v* U( d7 P2 w
3中断语句
) K9 U, \, i) b+ c2 J p3 j4 N! M waituntil <condition> prio <integer expression>;
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; L6 o1 q* j7 O1 q& j/ A7 Z1 b- V' ~以上为常用的函数！
7 b2 q. v+ s: }4 h5 e. h( H0 m还有很多，如有需要我把资料发到你邮箱里 0 e% C% b. [$ o. D' D3 e
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