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发表于 2012-11-13 08:48:12
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1判断语句1 r9 ~/ X3 R) o8 r7 G' r7 |
if <condition> then
1 n N6 k" a5 y8 X& |5 Z7 G <statement sequence1>;
% R, h' e4 I0 F, ^9 u$ \( ?6 T elseif <condition> then& f# T# r$ H. @) f: v% o, y/ T
<statement sequence2>;
$ A/ u ~+ v. ^4 Z, t else
- v$ K1 d5 d, b8 \1 ?* A <statement sequence3>;
0 m1 ?% P1 H( i, L/ W end;
5 M8 ~' o1 M0 v$ _! K如果分支比较多，用：; Z. a* ^0 \& N
inspect <expression>4 o# d* w/ |+ e( ^* z6 d
when <constant_list> then
: y4 T \. K# d. U& B6 y8 p <statement sequence1>;
% W( L# l" R; K3 P$ {1 E7 X- w when <constant_list> then
' @# f1 {0 b/ }$ f$ C( R' x2 z6 A$ g <statement sequence2>;
+ [; A5 N& p! R1 X- w ...$ c$ C! T" o+ |: x. t* i
else# }8 `' I/ E- z1 w' G
<statement sequence3>;- Z! ]) ?$ Q1 S3 Z$ e8 g
end;' |( C g% W3 K _ V% y( H) a
% i* N a- @" y3 K. P. ~2循环语句* ^% ^/ B5 B- s1 ~4 u& |& ^
(1) from <statement sequence1>/ F9 T- v0 F: ]8 z7 M. D$ l) Z
until <condition> loop
5 q; I* M& @1 H <statement sequence2>;9 f# d l) f/ d C
end;
' E+ V/ O6 v8 U0 O; j$ J! E (2) while <condition> loop+ ?& i% P: y( ^& u5 q, c
<statement sequence1>;
8 k8 @% P' s# M" d3 M( D end;
9 R5 ~" b! d" O+ K5 W! l (3) repeat
( T% ^- J% |- i8 Y' |% _ <statement sequence1>;3 R5 Z3 A; q+ D9 D1 S: t! u" K
until <condition>;) V; q' F/ s! j
(4) for <condition> to <condition> loop
1 Y6 M/ v) x$ l4 a* h0 b <statement sequence1>;
! \2 e) }1 G! `9 `" x next;
7 F( c X' |$ ]' ?* H) g6 h& [3中断语句
; w3 x7 C* g5 E) N' r+ ?( A& S: l* e waituntil <condition> prio <integer expression>;
3 j+ s$ j, c8 J. A2 a5 I4 n5 @+ G# S( v. h( S
' k1 x0 K9 S& z: q" F以上为常用的函数！
6 L' u ?/ s* E( P还有很多，如有需要我把资料发到你邮箱里
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