|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
4 G5 j2 v0 H. z: q8 ] if <condition> then
% i% Y0 d A7 b S/ n. ?( l <statement sequence1>;
2 |" W$ q5 i H elseif <condition> then n$ D$ U: m4 b6 Q) n) u2 K1 D- N
<statement sequence2>;/ r2 @9 _' D5 O v
else 6 R$ k- A; e" I4 r
<statement sequence3>;0 P$ U5 s; t1 i) _" g( ?
end;; l& l% ]; m' k- N' s" ~% L9 }
如果分支比较多，用：6 J! ^2 G( m2 E1 T- M
inspect <expression>
0 B2 \4 w! A% t4 O! C, t% r' U when <constant_list> then
/ l0 \0 z X6 L+ F9 c t+ I- R <statement sequence1>;
$ A; v. H* ^4 e! V! @2 `1 f& u when <constant_list> then: v p! y: W$ D9 l) d- L
<statement sequence2>;0 k: U# @7 a) M
...$ e% J! J1 x/ L
else3 _) Z+ n3 d3 g/ Z* ?7 O
<statement sequence3>;
1 E5 U3 M/ j2 u% T, r& `end;
1 w2 E5 ~. q3 S8 [ j7 [: a
) B& G7 {- |6 }2循环语句' A! {: V$ \' l
(1) from <statement sequence1>
0 K. z ?- k9 a: y# E5 {6 _ until <condition> loop
& k7 z1 q+ n( w6 {7 D5 v <statement sequence2>;
+ e7 C% U( d% `) N' [$ ?8 J7 J end;
! P" R; T' l& F7 m& Q z (2) while <condition> loop
1 P8 w$ j+ r9 G0 z9 J7 d <statement sequence1>;6 T$ e, T, o; l- X F
end;
; ~3 P4 X9 W+ B8 Z- z (3) repeat # c! z) e4 g8 h b* ]; }
<statement sequence1>;: C& P; }1 _- K9 n/ v0 q9 \9 J
until <condition>;
: a% s8 J- w: V (4) for <condition> to <condition> loop
: k# g1 D w: U <statement sequence1>;1 r. f' l% P: ^: C6 U4 j0 C: A
next;' U. V" o6 z8 {% K/ ~8 y
3中断语句& H. b7 p/ J# E- j
waituntil <condition> prio <integer expression>; |& N% l: q& h! L# y" h
, p$ X. g8 l( E' T, v
+ ~0 G4 Y6 p5 y) h
以上为常用的函数！
% ]# e# h9 A8 `: {& q还有很多，如有需要我把资料发到你邮箱里
+ l# z7 y- s" \8 q
, k( J) V. t8 g: S& G4 t3 {* X+ S! H' l9 K
; Z4 X: J/ o9 e 3 O8 D! a a5 V$ G% [
+ k1 T; }, Z% P7 H i! {9 p
, m6 Y. }* t2 ~* c- d9 g
% h }- r" M. K) \3 g* H9 U7 V
6 A; f0 R- N: L0 X! j0 I
3 a j6 C, [0 J+ E" M
" Y- S5 Z$ s4 N$ Y. m$ I+ h. I |
|
[复制链接]
