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发表于 2012-11-13 08:48:12
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1判断语句
+ a* ^! O( ?: X0 s' f if <condition> then
0 M5 v; V: \/ J/ M <statement sequence1>;
5 z% k% d0 y3 X! i& u elseif <condition> then7 g" {8 V) X4 h# ?$ t
<statement sequence2>;
( \! ~$ U& |6 P" k: | else
5 S4 B0 g! J; @! M; x0 ]* V2 \ <statement sequence3>;8 ~ H+ ?0 A4 i# W0 g
end;
$ j9 L; J: |1 s5 V# I0 f如果分支比较多，用：0 z" C1 p7 a" q! ?
inspect <expression>
: C' c8 P Q8 q, L7 v when <constant_list> then5 G* j0 k$ J4 r3 p
<statement sequence1>;
& i; a0 a" `3 g0 i4 R when <constant_list> then1 X, ~: ^- q$ A1 w8 G
<statement sequence2>;
; M' F8 W! ?* L7 R) i4 ^ ...
1 \+ D, l4 t/ O4 n3 Q else& x/ U2 q/ M& t& ~9 E& E
<statement sequence3>;
$ k' a* `4 z1 }$ E- x* j$ _/ m; rend;; f9 _) \. q( l; [, D& b# r9 G+ H
7 C, A1 y E" V# w* p( o( d2循环语句5 C3 j" }0 F$ D3 m O+ C
(1) from <statement sequence1>- h& k: a" _1 X
until <condition> loop
5 T% r5 Y! f, L1 B6 ?# m <statement sequence2>;
# F% j2 E R5 x; a end;7 K1 V7 p$ y8 V
(2) while <condition> loop
& p' s7 M; q3 @- ] <statement sequence1>;7 a" s K% r3 y) J0 _0 a6 u O c
end;& S0 m5 A& A/ z7 c0 H* a1 ~& O
(3) repeat % M% t& y3 Q9 p; ]( O
<statement sequence1>;" j- C" S5 g6 i; G- k9 H; _0 _* D
until <condition>;' e7 t- F! r+ e
(4) for <condition> to <condition> loop+ @7 q {: a$ s9 @
<statement sequence1>;
% G& S3 g5 L/ x' O6 W } next;; n9 u9 X) z2 v/ k7 D' a7 |, S
3中断语句* J: i+ h* i8 j" w3 I& q
waituntil <condition> prio <integer expression>;6 i4 k$ P$ V& C# N2 O$ D1 G
" P* e l; t/ h, F/ l# Q' K- p
' N# n( C3 F) o$ x( X6 X9 |; l/ g/ a以上为常用的函数！
6 {! J V$ s3 q还有很多，如有需要我把资料发到你邮箱里 4 Z! O9 |0 \; i6 q$ m& d4 u$ q m
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