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发表于 2012-11-13 08:48:12
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1判断语句$ w. y% ]- [: M( J% y* l
if <condition> then
4 B9 ]# S- C* | <statement sequence1>;
& [* B* P# f3 T/ \ elseif <condition> then
4 E, b! Q ?' P2 K# k <statement sequence2>;
. h2 z- T7 N: H else ) ~0 C, K* n8 p( f* c' O
<statement sequence3>;
0 a |* ~) h- }1 @) ] z end;* a6 @) w. D. I7 }
如果分支比较多，用：- u' h, L* N5 d- J" J
inspect <expression>
% A4 m% k, m9 } when <constant_list> then6 `4 x( ^9 g' s9 \& V: U9 Q
<statement sequence1>;
. k3 j% k9 {) m Y when <constant_list> then
. u \+ i7 ~5 @. n+ j" n" z <statement sequence2>;
2 b: V) a7 e& o0 E0 U* X ...
( U. `- ^* s+ ?! x( a X else
. z4 V; n/ }" S. b; y <statement sequence3>;
3 w. c4 \4 H: u, @! kend;
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2循环语句
$ r+ y R& ~2 ~5 e4 I' t# x$ W( ^ (1) from <statement sequence1>
G! S% z; P" O! u0 j @ until <condition> loop! r2 }$ n" C: c. J3 M% i$ F' ?' @: v
<statement sequence2>;5 k1 e+ P; f1 ~7 t
end;9 z' k+ x- t' T, N) |4 ?- u
(2) while <condition> loop& L% h& \& f" F. K3 ?& [6 V
<statement sequence1>;# Q4 I0 o& L( |$ Z
end;
; o& z5 C1 d/ B' v2 \1 \ (3) repeat & C* y/ n) D& u0 S3 X+ `* G3 e
<statement sequence1>;! y2 n) H/ Q K. i1 A# K2 b! s
until <condition>;
5 `+ `2 J1 l" ~ A& Y; W' ^ (4) for <condition> to <condition> loop: ~4 J) G- A- B
<statement sequence1>;
* n! B9 q, ^8 w2 o- I# l8 m' B, r0 ~' o next;/ o- ?( Z0 g' r" {( ~9 F8 t
3中断语句8 W: Z6 Z4 [: w2 y) n1 y. K3 t/ N
waituntil <condition> prio <integer expression>;
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# [3 Y& H8 m& V5 Z/ v5 [2 q* I
( d1 J9 {/ m9 M8 U! n以上为常用的函数！
- p/ _& |$ m; I, v0 S! x! k还有很多，如有需要我把资料发到你邮箱里 * d$ i: i, q5 R0 \# ^
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