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发表于 2012-11-13 08:48:12
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1判断语句
- M6 r& Z* ~& k" J% p+ I if <condition> then
& j) [. V* f5 D, w* ~ <statement sequence1>;
% N2 w$ l$ k" F1 I! \9 o elseif <condition> then
+ m6 F2 R4 k& K j4 j <statement sequence2>;9 @4 c1 P# W \' f
else 2 o. P% E2 A) p
<statement sequence3>;
" s8 K3 X0 Z" ?4 L7 H$ n end;
: X! B* O7 [3 b' r% L7 f* [& y如果分支比较多，用：
; P1 S5 Q2 ]! _* q! @5 u+ u2 A/ a6 e inspect <expression>
: W+ Z7 R2 V& P! G4 F when <constant_list> then
% H3 F/ h# K. Q7 x <statement sequence1>;
6 M7 _" Q' k7 y8 P! [4 c; [ when <constant_list> then
7 I: i/ s9 B4 i <statement sequence2>;
4 T8 C* n) f/ c ...
8 p8 j$ J' Y3 h6 v. | else
& ]8 o3 D1 a3 b <statement sequence3>;( L. x2 J9 }' S9 Y5 f1 ^1 p
end;
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2循环语句- {5 U) d0 K. \' z
(1) from <statement sequence1>
9 y) C, ?" `4 f2 O* z until <condition> loop- J; e3 X# u$ w( H
<statement sequence2>;" N0 s, ]( X7 l
end;$ l `0 ~$ K; \
(2) while <condition> loop6 ?" f( M8 y, x* U% T" J( }
<statement sequence1>;1 z- u( i6 X( u' e5 V& [
end;
' O- m4 g! X5 |& z. Z F (3) repeat
% g! r* c2 }& ~6 s9 N4 j6 `6 k3 @4 ~ <statement sequence1>;
# Z: Q! P2 u: m until <condition>; G* k2 X; Z/ D& s9 r! }
(4) for <condition> to <condition> loop5 `: i3 i! w) ^ g+ F7 c
<statement sequence1>;( X b6 d7 u+ n! ?9 ]' y
next;% p' \# x- _" s% C+ s; X% d
3中断语句
- v/ S( _9 i, V2 X waituntil <condition> prio <integer expression>;; h1 }+ }% j/ a( O1 d
; { @+ v; K( D6 }, z. e$ a$ t
- w8 E, |" r# \# a
以上为常用的函数！+ a$ a- {4 ^; z* K4 g$ s1 V8 {
还有很多，如有需要我把资料发到你邮箱里 ; q$ |: y( {3 b. f1 J/ \6 X
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