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发表于 2012-11-13 08:48:12
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1判断语句$ A& H8 i' w3 k2 u
if <condition> then& P6 E5 V1 N$ a/ e) T
<statement sequence1>; A2 U- z1 C( P9 R8 p
elseif <condition> then" E3 Z1 {5 x6 @& N
<statement sequence2>;
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<statement sequence3>;* k! R* K8 o0 c
end;8 b% i9 r) ]+ A5 J# b6 Q8 t; N* ~
如果分支比较多，用：
; T" Y: ?2 g R4 q% z6 e8 F inspect <expression>
% O9 K, d0 g$ r; [- d; f when <constant_list> then
' S* ~$ F8 a4 B* D, g9 b! ^ <statement sequence1>;1 W+ F: p7 M+ P+ l' d
when <constant_list> then
5 h, G3 Q6 R. O5 J4 {; y7 W0 K <statement sequence2>;5 f3 B5 O; x) B4 z7 d6 U
...4 P$ j8 t- J- Q8 u0 Q
else
) N( d3 ]/ T5 p; O. s <statement sequence3>;! e) H/ I1 l8 U& Y
end;
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. y+ O1 b- R p2循环语句
% I' ?- ]9 ?% \1 g (1) from <statement sequence1>
6 R$ Z; Y1 L5 a- ]+ } until <condition> loop& A% j7 l* i5 x0 h) p
<statement sequence2>;5 i$ a# @& u4 ]. z3 X1 z: s
end;
8 I8 Y4 f. n2 Y$ c (2) while <condition> loop
% O5 @6 }# g: s. f9 Y+ k4 r <statement sequence1>;2 ]6 P2 [2 B8 V( F/ K! Z) t, x
end;5 Y, x: J; S: H- A* ^( l* X
(3) repeat
% _6 P% T8 J9 t4 C/ a& z( e <statement sequence1>;! g; o. |/ ]1 z# X5 H, a% I" _8 c
until <condition>;
. i+ D; Z2 e3 ?( Z5 K/ D, I (4) for <condition> to <condition> loop0 U# C# E( m' v2 d% T+ u# R
<statement sequence1>;$ I+ u) U5 j/ A% H
next;
8 G! |& z: y% c* c0 f0 |3中断语句0 L, v6 Y7 N, y t; G
waituntil <condition> prio <integer expression>;
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: I% H3 O6 Y* H( }以上为常用的函数！
2 q; Q( p/ z8 N. m还有很多，如有需要我把资料发到你邮箱里
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