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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
" m* K, K! Q) h% n if <condition> then/ O& h9 t. ^" }: [
<statement sequence1>;
& G2 f( g! e, S/ K. j7 L elseif <condition> then. z2 ^; f" U1 d. }; Q0 h r
<statement sequence2>;3 l) t. M! B. P) I( u- J0 @
else 7 X+ X( w& L' [) f' k
<statement sequence3>;% N3 X* D. N# g" ]- ?) h
end;
5 \/ r) b. f7 m/ h4 F如果分支比较多，用：
) J9 H+ H, d* M1 C. ~ inspect <expression>% n# Q, e, j% U
when <constant_list> then' k5 a& E$ d/ n4 p8 D4 \" w
<statement sequence1>;
+ D8 l6 {/ ^* F+ [ when <constant_list> then
" v2 ]8 B" E$ o$ O0 W& R <statement sequence2>;+ ~. Q" d6 {( A' Q+ S
...5 }- c0 @- E0 a% U4 W5 G
else; |+ B7 O( }. v, Q3 l
<statement sequence3>;7 }9 { r6 M3 C3 g: P! P; I1 C8 a
end;1 ?5 ?4 B+ r* G& {
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2循环语句
/ S: ?, z/ Y6 e( U/ U3 z (1) from <statement sequence1>$ }5 {+ l( y# Y; q4 e& l( A
until <condition> loop
" n5 [6 H8 L& H( ]" S <statement sequence2>;
, f# r# O7 t/ C end;
! x8 m9 o$ b5 W& v. b, P D5 F (2) while <condition> loop. T3 D0 j+ J8 b3 K4 `8 d7 I$ C
<statement sequence1>;
' [" h P+ S5 T: _ ]; N- m end;8 K# k4 y0 B1 x- g, Q
(3) repeat 6 v, v9 d# A1 A; Q- A0 X2 D
<statement sequence1>;, h g2 u7 W$ e% l5 x
until <condition>;
* Y3 L* G2 f1 ~5 N# O% g( I (4) for <condition> to <condition> loop7 E' ]" }$ S& X( L5 P9 g$ e
<statement sequence1>;2 `3 ?; p- n( {. X- \, L
next;
& [3 @* B9 y0 ]0 x9 Y7 o: V* `5 g3中断语句
o: y, K* ]* } waituntil <condition> prio <integer expression>;' L" |( c" Q: }% x3 ^3 S/ e# h
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以上为常用的函数！
1 i2 C. u$ y: M- l还有很多，如有需要我把资料发到你邮箱里 ! Q& p ~* Z4 A8 b: K6 U) o0 j
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