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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
" F) x4 R: }: h1 L if <condition> then
. [6 E; @+ L2 { <statement sequence1>;1 C4 u: ?) I7 m" I& n+ z0 _
elseif <condition> then
$ U. ^$ d' R$ G& t4 \0 ?% n <statement sequence2>;
4 W+ I6 Y+ j8 m, F else
1 |: B2 ?9 M) n' ?4 @) @* B <statement sequence3>;8 M& M9 ^1 ^* ?4 K8 Y: ~7 h9 B! I! S
end;% [/ p4 a% W# j+ N4 R& K
如果分支比较多，用：
; D; _- i. G0 @* {1 H5 B inspect <expression>
% m- y, _8 j& O3 M; A when <constant_list> then
" [" @. y( M# ? n8 }6 M+ a <statement sequence1>;6 v0 s4 T" o0 n# ]
when <constant_list> then: q7 v5 u z2 Y% V7 E' p
<statement sequence2>;
- n0 O' ^9 M& i) n; b! W5 i/ N0 m v ...
; o$ |# U4 i. W% @2 h else
V/ h7 X9 t$ ]8 e$ `) U9 O <statement sequence3>;& s: s5 P- w" @( Y6 F
end;
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2循环语句
: @" {+ t) R# a( X, b& J2 B (1) from <statement sequence1>
+ z3 S [ u. T! Z6 t2 q9 r& ^ until <condition> loop2 g. ~, ^: s% g) {, {4 O
<statement sequence2>;
- e5 R7 Q+ P2 M: N end;
V( R; g5 W2 t (2) while <condition> loop
: c+ e+ J2 z& O" ~* r J3 M <statement sequence1>;* I! [( f' y2 U5 p- M
end;
, S. c8 p2 e1 `. x! x- d% \3 G (3) repeat ) n$ J M# E. [; ~+ S0 ?5 w" [
<statement sequence1>;9 k5 i5 W# S+ d* m( Q) o
until <condition>;' S5 t- `0 |% M- l- r& p/ L6 d( J
(4) for <condition> to <condition> loop4 D; j+ l& F Z
<statement sequence1>;4 s$ r# E3 @1 ~4 b7 J
next;1 p. m5 L! Y \1 R: P1 P+ N3 |
3中断语句
; `. C0 D* e. A$ B! @ waituntil <condition> prio <integer expression>;
$ y: V! r; {- L Y; h0 a9 J9 d1 }, b6 `" l5 `/ `. Y
0 m: C3 b8 W4 x6 r; t
以上为常用的函数！2 m8 i# z2 |! @ L2 S
还有很多，如有需要我把资料发到你邮箱里
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