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发表于 2012-11-13 08:48:12
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1判断语句* o5 g- _" f w% y) ~
if <condition> then3 r, \8 l a8 i6 X1 R2 d8 E7 S! o
<statement sequence1>;
3 ^8 d- l' k9 q! f8 c elseif <condition> then
' j0 U- p7 p% v/ s <statement sequence2>;; G3 L' B" L' f# l/ M
else
7 K. G% l% s" w% R e <statement sequence3>;
( r# S" `+ p4 _5 Y8 @ end;! j) b9 }4 O# T
如果分支比较多，用：
: p4 C$ Z7 D, {8 D2 t h, b inspect <expression>" X3 ]2 h: A7 |
when <constant_list> then2 a3 B) t, P3 L7 g$ o
<statement sequence1>;
+ V7 u+ ^# k# } when <constant_list> then
; A- J& v Q$ o0 `- p; Z/ Y+ c <statement sequence2>;
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else
$ Y* S5 J4 k: y5 R. `3 i, a9 `1 J1 U <statement sequence3>;
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2循环语句: j, h' F& C* N, D. \$ q0 M% c" {) }
(1) from <statement sequence1>+ [; g5 C5 y" W" S( a, K! C
until <condition> loop" f1 y9 l3 z( y( r& T# ~
<statement sequence2>;6 W5 b3 m5 m8 p1 O3 Z8 ^7 U, o
end;1 g% o* `: x8 q1 q0 h* @. }. [& d
(2) while <condition> loop
8 e2 Q E& N1 ]7 A i1 ~9 w <statement sequence1>;
" ~4 f/ b& r! e1 f7 u end;
4 y; [) @$ j3 a1 K (3) repeat $ t# n. w) f: b4 e _
<statement sequence1>;7 L$ f' S3 a' `5 s/ J' @& u& l1 a
until <condition>;+ F) z: N* D* [* c+ }: H5 @) j
(4) for <condition> to <condition> loop
" K" s# w$ U9 `' p, m3 B( a, \, D <statement sequence1>;
6 U! s6 R. O" ^ next;* k& E! d3 Q5 n D6 i
3中断语句
9 `8 |# s) h z0 V: v2 [9 N( S& k: V waituntil <condition> prio <integer expression>;
. P% \0 F& M5 u: A7 a0 R* j6 u, f. A5 D8 g8 q1 i# E
8 T" o- ^) t% c3 h+ H以上为常用的函数！
% A3 A, p: |1 @# f5 D6 o还有很多，如有需要我把资料发到你邮箱里
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