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发表于 2012-11-13 08:48:12
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1判断语句% i/ s2 T4 ^; ?+ z( o2 f
if <condition> then
2 t9 H! ^5 t( b5 @4 ^2 ?; u <statement sequence1>;
5 t" O$ b5 R) c' B9 Y6 z- ?1 C; ~ elseif <condition> then
# d2 w% l/ g. T( j <statement sequence2>;' t& }1 @8 @! R* G) z
else " M$ _: L" p' {- j/ R0 F( l# ~5 O: t
<statement sequence3>;
4 ~# Y I i4 p1 F- ]& M end;
], Q3 i! B8 f% ^ t如果分支比较多，用：
3 v t* H; Y8 f# {8 H& S5 B' ^ inspect <expression>3 U+ }: o4 m! Y! W3 N
when <constant_list> then
7 t! }# H1 R# t/ u <statement sequence1>;
1 v/ P; ~; J# j$ D when <constant_list> then
- M1 N- K' Y+ a" K h, q4 T1 @ <statement sequence2>;
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else
8 t" y# {: }/ `8 z <statement sequence3>;' i& A. }- I8 a9 J) m- M! G4 n/ T
end;
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4 U4 D+ d6 X% r$ P$ E4 x2循环语句- K5 c" c! n' a! f0 d
(1) from <statement sequence1> w" H' Q8 j1 z4 y3 A
until <condition> loop/ W% ^/ M/ m; F# q- |5 c' w
<statement sequence2>;
: P" R, ~/ ^/ S" Q+ U ^0 l* ^ end;4 B$ d+ D( }/ n* A- ]/ P0 O
(2) while <condition> loop
% }+ s1 b( R# z. J' U <statement sequence1>;5 ?+ J: O# R4 `' `* l7 J; C
end;
; B& U% P) _8 h: h (3) repeat & `+ y! t& l5 Q+ N
<statement sequence1>;* u1 M, E5 C/ K9 C9 Z3 ]
until <condition>;
" B5 B1 w" \* t) r (4) for <condition> to <condition> loop
( |# ^! D7 P5 R) k <statement sequence1>;: z1 T- x e' x( R& Y6 i+ \
next;3 W/ F* C* g$ I- u% p" }. Y2 S; n
3中断语句1 n# J, R+ g8 m2 Y* S. G
waituntil <condition> prio <integer expression>;1 s2 E6 ~+ S8 y
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以上为常用的函数！, k9 X" A, X( x8 G
还有很多，如有需要我把资料发到你邮箱里
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