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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
! e$ H8 m* w/ `! F+ Q if <condition> then
5 _" x O0 }- z' P1 z <statement sequence1>;9 o9 a( ^5 U$ x6 C
elseif <condition> then
* S4 b5 l6 C- X1 L! j" w <statement sequence2>;
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<statement sequence3>;- V- U, [* r8 ~% s5 y9 d/ b" G
end; a( J- p! U+ |4 e# O
如果分支比较多，用：4 J& Q6 ?1 ]% @% v+ s5 w* i5 H
inspect <expression>% w) O! h; ^; l' H
when <constant_list> then" s/ v0 H. L7 Y2 t, v/ I
<statement sequence1>;
. f7 J5 }8 k. i when <constant_list> then
2 h/ e7 C2 o. U6 g2 q8 i! G <statement sequence2>;
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else! `8 ]8 k, K# _) h
<statement sequence3>;1 e7 S1 K4 y3 D+ E4 Q+ J% E
end;
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2循环语句
) w1 N3 y- Z" g) e0 [1 o* g (1) from <statement sequence1>( ~* |9 V, f0 k8 K4 S& a7 m
until <condition> loop
: T7 ? x) l& c: M# i <statement sequence2>;" K! a( T0 G- K$ v, G# F5 H! |
end;
, M% h- k5 W* o3 _ (2) while <condition> loop# \$ B$ U9 ^; V: Q# j
<statement sequence1>;# f7 L8 m) _# @" w3 H8 j7 i
end;+ z( s' v! @ U
(3) repeat
2 }: m! h! T9 t* E8 M <statement sequence1>;' @" X7 v }9 F! M
until <condition>;
. q* E$ f8 W* W2 `9 h3 q (4) for <condition> to <condition> loop
" C1 ~6 U0 F/ i <statement sequence1>;* R& r9 s* r& D" y$ n
next;* V( x$ N$ o4 h( t
3中断语句
& n* u* e4 S0 U/ m waituntil <condition> prio <integer expression>;: v4 Q4 ?9 `. S" P4 U5 |3 a2 U- ?. _5 W2 M
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以上为常用的函数！' K9 _' D+ _( H m
还有很多，如有需要我把资料发到你邮箱里 9 z. {) b! Y8 l( C! q: J' m' C
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