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发表于 2012-11-13 08:48:12
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1判断语句* t% U& Q* U" M
if <condition> then* c4 t. r7 K% a. d; u; G/ R
<statement sequence1>;, _) B! e: t6 c% p y- F) Y8 Z
elseif <condition> then
! h+ t. q9 ?" a <statement sequence2>;
* b( t6 O \" C5 U, q. {- f else . a. ?- _; t3 l, t6 C
<statement sequence3>;
" ^. m: p; Q% X j$ _2 T end;
+ Z$ W9 o8 Q. ~# ~如果分支比较多，用：
; q: l8 b. \9 [0 L2 {6 X* i inspect <expression> F0 c) m. _- n6 {! k6 k: w
when <constant_list> then
% O# z& d) `) Z) G <statement sequence1>;
5 n+ Y* |+ @/ v5 ^% S7 _4 s when <constant_list> then
, N: m p8 B& ^& K- N& E <statement sequence2>;
+ o" K; }( K" d/ o4 D ...
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<statement sequence3>;/ ]; r! M! A& b3 Q
end;
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4 H! l: | K3 b% i2循环语句$ h" S6 w, U0 u3 _2 `/ U* w
(1) from <statement sequence1>
+ ]9 f( W4 |& s: n3 g- i2 H- v until <condition> loop Y; ?" D3 K; G* i0 p; R# g4 ]
<statement sequence2>;4 V4 l: z6 F, Y6 @: w" g( L" t
end;
( F' `8 r% M8 \, ]- x* ^ (2) while <condition> loop
" i6 @+ H# ^- J7 f <statement sequence1>;
" t: n; D7 N) k7 z% Z7 A' n end;8 R' @0 U/ D4 g' m: l
(3) repeat + |* v5 Q& ] b7 q6 E1 n& s
<statement sequence1>;
& G9 e# W. N z% {6 e until <condition>;. E: c$ _+ E! O: ~- ^
(4) for <condition> to <condition> loop
L/ s: B& p C. o2 o <statement sequence1>;
. a$ V7 z/ W+ ^; h4 X6 O next;
7 F7 `# ?8 f) F3中断语句
! `. P+ v' T- D% X) g& H' E waituntil <condition> prio <integer expression>;& E8 U B6 z$ y* h' n2 L! f% }
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以上为常用的函数！
2 I B3 q4 Y' E3 a+ |还有很多，如有需要我把资料发到你邮箱里
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