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发表于 2012-11-13 08:48:12
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1判断语句, L# G6 y9 A6 \, L( {2 P
if <condition> then
; g0 d3 X/ L$ z7 ^& `% Q4 b <statement sequence1>;% W+ F/ L. x* M$ \2 D' I
elseif <condition> then
. P8 B' g5 g+ k# X2 R, w <statement sequence2>;
! D2 I* k! G; C8 G2 ?9 w2 Q& }3 ~ else
5 t4 U1 A* F' m- U6 Z3 Q% S# d2 D [7 y* A <statement sequence3>;
0 |; Z, B; _5 E$ w6 E end;
6 x9 `4 {4 i! t4 N; T6 G如果分支比较多，用：
+ A+ ^) {- ?2 h# N1 v inspect <expression>; o4 \) x. t, r
when <constant_list> then
t9 S9 r& ~, a# D) \( F <statement sequence1>;
: r5 n3 v5 ]: m' Y H' V7 T when <constant_list> then
7 O Y T- C1 | <statement sequence2>;
# _( S% Y# Q) R+ T6 P) k* e1 T ...
6 a7 y( ]6 F! n+ X; f- e0 v& L/ d2 o else
0 P- X" N, ~# \/ l9 j <statement sequence3>;
+ ~8 z$ M$ \: `) t/ G8 Hend;4 V2 y3 A8 }; @- I& u# J
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2循环语句
* U2 e: p. K/ J) |' c (1) from <statement sequence1>6 P* d2 ?/ ?! `
until <condition> loop! ]; i6 G& c+ L3 ~- ?0 w3 J( I
<statement sequence2>;3 Y7 S7 [) ] p% c, o
end;0 h, ^ {' k- p7 q. X% g
(2) while <condition> loop' I& S/ `- ?# v9 \ {+ s0 k
<statement sequence1>;
4 |# v6 t& u. q, }; \ end; B9 S* [$ f! N6 ?
(3) repeat ! d: [; n$ ~0 K/ B- E4 |1 j2 H
<statement sequence1>;
# k, n) R! Y8 u1 r$ c' W until <condition>;1 Z9 [/ W/ `1 u& ~/ V
(4) for <condition> to <condition> loop
. c& |; d( A9 F" r+ }% o <statement sequence1>;4 ?- F- i( L6 m6 O0 C: t
next;
7 t9 M+ W+ w' G' [! p3中断语句
- c+ N4 J3 H/ `8 S. b waituntil <condition> prio <integer expression>;
S6 A, w9 i" u: P
* o5 ~7 r5 E$ E- E; }- C- A' v$ k/ X" o: V* }& A& W7 c
以上为常用的函数！
* q. D1 o3 O8 N还有很多，如有需要我把资料发到你邮箱里
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