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发表于 2012-11-13 08:48:12
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1判断语句
2 K2 G, Z( T. \: a* b k if <condition> then
4 ?7 q2 g- O( U) C" J+ b <statement sequence1>;
7 X6 i9 x; s& h) D" m! S% I! s elseif <condition> then$ w j9 A. {0 A9 {2 t4 {
<statement sequence2>;$ }1 Y) m' A& c( ?
else 2 ], U/ Z* s' @! V- L
<statement sequence3>;
+ p" j6 M5 y- u- k end;0 W6 ?6 d2 ?7 V
如果分支比较多，用：' H Q4 n$ w' Y5 U& d
inspect <expression>
% h: h* M4 K$ S2 p9 Y when <constant_list> then' j4 q! r r' ?0 f5 q3 r* @
<statement sequence1>;
- `3 w ?+ b F! | when <constant_list> then
Y- X# t3 z7 a0 U8 T <statement sequence2>;
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else* q* V1 i6 a0 F( o
<statement sequence3>;
2 ?1 Y G' q& i4 aend;
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* e" D6 a N* S! h2循环语句( I s, o2 d# o# j0 j
(1) from <statement sequence1>4 k, s3 V- L0 G" g- L. x
until <condition> loop
8 c k' q% K! R, x K& O9 _ u/ F <statement sequence2>;
3 x1 w7 N T- U& g1 w6 r end;
/ _9 q( c1 u& f (2) while <condition> loop
: A* A6 d/ a# `" w X( \. i5 `4 ~ <statement sequence1>;
2 E0 j! Q7 [8 x( c end;! C6 d/ c7 Y: u8 j% h
(3) repeat * L- } E0 g+ B l
<statement sequence1>;* @, g2 d4 R( I/ n9 P @3 K
until <condition>;9 S$ r: ^* N! G' ^( x
(4) for <condition> to <condition> loop
2 Y' A3 D2 U# R- s" ^ <statement sequence1>;
$ S2 o0 ^* J# y: u next;. j B3 a8 i# k/ {
3中断语句
/ Q6 J4 | P' |6 l* W waituntil <condition> prio <integer expression>;) Z" \" [7 Q# B5 F) n+ [
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% X( D6 u: b) D( X2 h% ]9 [以上为常用的函数！
& _, ?. |. g7 P2 E8 c还有很多，如有需要我把资料发到你邮箱里 + R+ s: D3 e: V N8 i
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