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发表于 2012-11-13 08:48:12
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1判断语句
- N( N$ S3 K+ r8 U/ |7 x6 \ if <condition> then
# @. Q) y7 V- s8 Y! h <statement sequence1>; a) g- ^8 _3 ~9 {$ i. L
elseif <condition> then
/ Y2 }/ n3 ^. a4 ^ ?5 z <statement sequence2>;$ a: D. V0 A# Z6 D' |% ~
else
6 s, I% Z. \ e7 p1 W% U <statement sequence3>;' ]) |# S2 q4 R( N
end;
! t# f! O9 b+ m5 s如果分支比较多，用：
) D! C/ L) {6 X inspect <expression>
+ D! Y# _! W t A when <constant_list> then
3 N7 D& d+ [$ L3 L <statement sequence1>;
3 h) B( w" U3 f when <constant_list> then
* e# D; V) F" k% P1 c- t <statement sequence2>;
6 x0 w; w5 |1 l P, f ...
4 E( G K* Z2 D @6 u$ _: u else' k% O1 E* v |9 c& I- T
<statement sequence3>;2 g' e9 E: W7 O
end;
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& U* r' B( k5 Y! d/ ^6 f4 @ ~2循环语句
6 w5 N! p; v% Q$ H6 T6 I' u: H (1) from <statement sequence1>
/ r' f: l) X. g4 p; S until <condition> loop, u6 B, s' f& f. m
<statement sequence2>;$ V% Y1 a: z0 A. M
end;
- P3 G5 y2 l1 T; h" N$ n (2) while <condition> loop3 l( J5 |; q5 T
<statement sequence1>;+ f+ |4 }1 d5 K' V5 d: |
end;1 E; {' H$ S% E2 `+ m, s
(3) repeat
6 o, P: u U- s- w! M) q- | <statement sequence1>;
: F0 @4 A, B! m1 p1 c7 X/ r/ Y# Q until <condition>;5 m9 G' p' A7 J! F/ G7 ]( r
(4) for <condition> to <condition> loop
$ Q& Z5 [& v6 p4 Z: h% _" x6 L <statement sequence1>;
7 c* X2 Y$ y6 s& X/ S+ { next;
. {4 i) m# M7 S/ X5 J( X3中断语句
6 r9 [" C( ~* q; b2 x, P waituntil <condition> prio <integer expression>;
+ o7 I6 ?0 A" e$ y {
5 T* @" b0 `# y# ^& |7 X" z
+ W, e; [. A- r以上为常用的函数！5 Y- p6 O# T# Z/ ~9 V
还有很多，如有需要我把资料发到你邮箱里 ; ~1 f+ E9 C8 h! `
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5 ~1 V2 `. x/ E$ k% P# L( x: d; x/ S% c# ]( R/ A" E l& ]
$ h) v! u w4 B- N+ m$ ?; i
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