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发表于 2012-11-13 08:48:12
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1判断语句5 ~1 S4 Z+ Z4 L P: W: }
if <condition> then8 n3 W; N# \% y/ k' g2 {, D
<statement sequence1>;
7 Q- B# |8 w0 a3 C! R elseif <condition> then
5 {! e% F: G$ T1 a+ J <statement sequence2>;# a2 j3 M& M2 j6 h
else 8 a+ k0 B# y5 H5 @* Q7 _8 \ r2 Q
<statement sequence3>;2 D" ~0 i$ ^! Q* e R: E$ t
end;# a5 U1 I) W: M" I& h
如果分支比较多，用：; K5 ^1 N2 U$ y% j. ~& z
inspect <expression>. l& D8 R! f. [: H; B
when <constant_list> then3 V B& j" z% j$ P& }/ G
<statement sequence1>;1 q8 V% Z M( v6 b* [* Y: d
when <constant_list> then1 E" d/ C2 ?9 H
<statement sequence2>;
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else7 x+ m) `$ w0 p3 H$ ~" |3 Y
<statement sequence3>;7 q' d9 I* b7 l0 c7 b
end;; Q1 I$ ^3 e6 _- e# M1 T( T
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2循环语句5 j" d3 h& w1 P5 U( ^7 c
(1) from <statement sequence1>
& Y0 `0 C' }/ f: _4 v# f4 H+ ~ until <condition> loop: t+ l% Z Y2 ~6 p G
<statement sequence2>;4 _5 F0 c6 J6 k7 x
end;5 H* y( _: W5 i. n
(2) while <condition> loop: x5 G0 Q7 A2 e. n/ ~) C
<statement sequence1>;% f6 B5 X( u4 E, b
end;( E! c# O, c- {2 m# _$ ^/ s% J
(3) repeat ) f: L2 V* l6 T- c! K- |
<statement sequence1>;* U4 l6 [* C+ S/ a( T9 G
until <condition>;/ I! A2 r& |( Q3 S
(4) for <condition> to <condition> loop
+ Y: h& e% S$ r$ n5 I <statement sequence1>;& _+ \. N# _% q9 v/ m
next;( k8 S3 C2 F4 ~) s' N7 ~
3中断语句
; l8 y( {6 W* g) x6 k waituntil <condition> prio <integer expression>;$ d% b* |1 Z' `# f7 O3 k
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以上为常用的函数！
2 V/ |+ l, ]- z) N* f* V还有很多，如有需要我把资料发到你邮箱里 & ]# C: w0 e8 p3 e0 h$ }6 q
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