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发表于 2012-11-13 08:48:12
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1判断语句) G7 L$ V4 r& |1 h3 ]
if <condition> then
! S# N7 ?" o- z: X4 O <statement sequence1>; W$ d6 w% u% k+ i6 S, p) N
elseif <condition> then5 m& y! |/ T$ n' Y. [0 B* n7 N
<statement sequence2>;
+ V: T3 I( J. Y! L else
! O' I0 u8 t) E, d <statement sequence3>;' W8 M% S7 a. Q
end;( e! q$ P8 ^3 m. B& R# @
如果分支比较多，用：
4 h1 l% Q6 d( ~% k: w inspect <expression>
! L8 e3 Q# K( k when <constant_list> then! x7 E5 b w: z/ n
<statement sequence1>;
4 `2 b$ |' ]9 @. t+ [* ~! ^ when <constant_list> then8 q9 \3 s# A" s+ F7 w( o/ e6 i6 w
<statement sequence2>;8 e* ~! a) R( R3 K
...
: i: e' Q0 \/ _ else
# @0 I" }/ }) V ]4 }8 Y# ~ <statement sequence3>;3 l. W0 ?; C4 c7 W* Y
end;
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% ~7 G; z# a* A* p2循环语句* L4 Q" ^- Q6 D0 p" `
(1) from <statement sequence1>
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4 y( u7 Z5 U s+ v" |, K8 |. [ <statement sequence2>;! h: R4 y7 j# [! b9 z
end;+ z9 A1 n5 X; V5 t+ K4 v
(2) while <condition> loop* F2 l6 K- U$ Z" |4 o
<statement sequence1>;
^( b% R4 l& c2 A$ b5 n. D' o end;
! M3 ]% t4 |( s6 `) z! s, u+ ~" F (3) repeat
- K5 ]% j& O4 Y D4 F6 R5 O# I <statement sequence1>;0 [! P% P) U0 f/ p
until <condition>;
& B# b9 L( S( t# f (4) for <condition> to <condition> loop9 h2 a7 T7 Q" t0 M: T
<statement sequence1>;
( F/ ~. A, }" O" X next;( N% n: `/ P0 P2 Y
3中断语句6 L+ x: T' T& o
waituntil <condition> prio <integer expression>;
- p- a5 f+ P4 P2 W' K7 O/ G+ p: f5 Y, L+ K* g1 _
5 g* S8 W0 g' \! ^8 e: M" I) e以上为常用的函数！
" _% p8 k6 C+ o/ M5 q: o还有很多，如有需要我把资料发到你邮箱里 6 V, ^1 c; i3 m: }" H
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