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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
3 {# t _9 w7 G3 b) T9 P# @ if <condition> then, L2 N6 w) P+ ^
<statement sequence1>;
2 P- \& W" |3 [5 U( O B, l- ] elseif <condition> then4 W; a% y6 u9 b" Q4 G
<statement sequence2>;
( b8 J# a9 L2 L else 6 k4 V- V' Q( w/ a& ~" _9 H
<statement sequence3>;6 k( _- A3 [$ h7 K% U+ D8 T
end;
( u7 s$ v$ [2 X# L$ h, J8 W如果分支比较多，用：6 P$ J9 P4 u* U- A" l1 ?
inspect <expression>
7 p& _" t2 T) f* b when <constant_list> then/ t) m, i# L4 |( p$ I( C: D, ~! Z- r
<statement sequence1>;" |5 f5 |) y4 C" N) I+ J7 ]! o
when <constant_list> then$ }! ?, F2 B2 h3 ?' y4 F
<statement sequence2>;
+ R5 z" G: G8 |. F% f ...
5 V# |2 k7 f6 Y, g9 ` else
% w2 o# `. n8 W8 H( E; u <statement sequence3>;
' [! u& h& T' T: W% J' `. o& {end;7 [: d+ r4 f3 G6 {% y
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2循环语句
& a6 K/ N- A% V8 h7 p' { m6 x (1) from <statement sequence1>
4 O+ u9 X, d! }8 C0 j until <condition> loop/ l! c5 |, x) d1 _- v/ y: }
<statement sequence2>;
( u$ a3 E7 \) Q4 g& f8 @ end;0 R( w+ C6 P |9 L$ w
(2) while <condition> loop
/ z( u8 ^1 C, m0 B. |" k+ p Q% Q/ e <statement sequence1>;, w$ ^& T1 x5 s5 ]+ C5 V
end;' g- w( z! }: j/ \% |9 H" @
(3) repeat 5 B3 w; g! d- g* p) I3 a+ z
<statement sequence1>;
' W. u0 E6 K: M/ W! ] until <condition>;
~4 E |% B5 u$ |8 h0 i (4) for <condition> to <condition> loop: |4 b! i9 s* Z% O' ]0 E
<statement sequence1>;/ I3 z9 j3 t& f2 [; T6 @
next;
& q, W6 J: H+ q# d/ f; t5 D* J3中断语句+ L6 I( r/ Y& s) {) R W3 [6 `' u
waituntil <condition> prio <integer expression>;# P3 \: ]; L' l K }& S
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以上为常用的函数！
/ Z# O$ x* I* |6 s% j- ^还有很多，如有需要我把资料发到你邮箱里 0 X1 @2 n' T& j* X
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