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发表于 2012-11-13 08:48:12
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1判断语句
/ o/ W( t- v2 T) o if <condition> then- J8 @* J0 h t' H* @; A: r% g, f
<statement sequence1>;
! z o9 R# z. q# @* c elseif <condition> then
# h: P, K4 f* m3 E' c" B$ a <statement sequence2>;
; n; [4 H+ p) U; d1 G/ H% I else
1 x4 P# F) K' Z; m1 k. M2 E7 p) `1 b <statement sequence3>;
# N3 q8 s5 f8 o# Z% e end;. K+ H& C; }+ T8 z! I% r
如果分支比较多，用：: x5 h& z1 J0 W9 l: t6 e# l; G
inspect <expression>
# m' J& P( X' C; C2 U4 m when <constant_list> then2 c# |: Y5 i( {# c) X# G
<statement sequence1>;; z& N2 h7 M) k8 k2 j
when <constant_list> then
5 H6 l! ~ X$ @ <statement sequence2>;3 ?, x5 }4 Y# h! c( j
...
0 M# h1 U& Y& O! [ else
0 Y- c0 B5 O& y' u <statement sequence3>;
2 Y6 H/ h- j$ H5 T# k( f2 Rend;
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6 Y% l- `- Q, f) ?2循环语句
) J2 M% W" w$ P3 G& g6 z! ^5 F (1) from <statement sequence1>
% p' U4 O1 Q1 T" t until <condition> loop Z: ~8 m2 y) l1 v/ ]8 o0 B
<statement sequence2>;
4 Z$ |5 a1 `/ P2 _% q% C end;0 }6 N+ W" e' r2 X# H. E/ G
(2) while <condition> loop
% }) n; d* M0 W: f <statement sequence1>;, j( O0 j3 o0 }2 g, Z, m2 D; v% R; F
end;- |9 m5 O) g9 D* N8 ]) c4 r
(3) repeat
0 \* ^- D2 z- v9 V5 C$ x2 r8 p- M <statement sequence1>;
: {4 @5 }& V$ `( A. z/ N until <condition>; |- C5 E: j7 p# D) K- W5 r
(4) for <condition> to <condition> loop
- J( h+ ?! g. Q; h3 ~ <statement sequence1>;# H; h& l* d# s* W) _& T& z0 J- M/ {
next;
. {5 d5 o* h* u5 u4 m3中断语句- w9 W& R6 Z1 T0 d8 q+ @( L4 I
waituntil <condition> prio <integer expression>;/ i. n* [/ {- A8 ^+ O
. A7 a( r+ {2 f {
8 y0 {6 E( R: {5 G以上为常用的函数！# {, }; _" b! v& o3 i
还有很多，如有需要我把资料发到你邮箱里
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