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发表于 2012-11-13 08:48:12
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1判断语句) `! s" N' z* i8 N
if <condition> then1 f# Z! ~; b, `7 C1 \9 y
<statement sequence1>;
; {! V- Y7 p- N4 ^5 {; a( N H1 K elseif <condition> then
; G: s+ h% i/ u9 L z& v <statement sequence2>;) X) E' _' J# v) W
else
4 D& ^; Z* ~9 C. M <statement sequence3>;1 \+ K' o- t; M3 @: q4 F
end;
; n# z" i( B9 [5 ~如果分支比较多，用：
3 C* m9 C, L+ l+ z inspect <expression>
8 t0 z9 E. a7 R- ?1 @* A when <constant_list> then6 n* S3 }6 p' `8 P. H& n/ G5 z9 {
<statement sequence1>;/ N- b; Y4 c0 }+ l9 x" e) H+ G
when <constant_list> then) D, G3 j5 S! T
<statement sequence2>;5 \1 p0 P' m9 x; Z
...
D+ Q, o+ b8 j$ Y else
/ a y4 H, L3 P4 _+ s <statement sequence3>;
* l9 ]4 b6 ?! s7 Gend;
) e7 }7 l3 Q+ y* t9 r7 X3 y/ K
- r0 O3 Z+ S+ E0 Z: a2循环语句
3 i7 w- N4 f3 P/ b: R# n. r% m% d6 h (1) from <statement sequence1>
3 q$ H, w: L$ ~' D until <condition> loop
' f7 O, g8 J! x7 @7 I1 x <statement sequence2>;
1 _+ d9 P$ \! K$ @ end;
p# ?; Z- G2 n+ @$ V (2) while <condition> loop! c& z5 [% p/ Y* c
<statement sequence1>;3 d; G% J+ Y4 z. `
end;, y+ V6 j0 {" c, r! b
(3) repeat
0 g+ v9 s Z. } <statement sequence1>;& z2 B/ p- D) ~, c" o+ F/ P
until <condition>;
9 @& u+ |' C0 y2 j (4) for <condition> to <condition> loop i$ U" C! o: W- b
<statement sequence1>;7 Z' ` W _. U/ L
next;
3 J+ d8 P+ R" x8 x4 J3中断语句
/ w1 n2 U* q) F) X$ O waituntil <condition> prio <integer expression>;9 r9 I6 @# h. p+ o& ^* U
- V$ f- ~) i. L
T! ~; k# @* g! G3 v D1 }以上为常用的函数！5 l0 q* G2 L5 }2 @. B" [% X
还有很多，如有需要我把资料发到你邮箱里 ; }5 b, R; i( n! f* v
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