|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句. Y6 v& k1 x# ?9 ?
if <condition> then u4 G) o* C% i" u
<statement sequence1>;
4 q3 s! j9 u9 z9 F$ l elseif <condition> then, [1 ~$ c( U5 f. L
<statement sequence2>;
# T' A4 [! v: E; Y5 ~ else ) ~+ S5 u# b4 S, C3 _9 \! d7 x. n
<statement sequence3>;8 X( O5 e; V6 m' v- P
end;- _/ h/ t; G2 Z
如果分支比较多,用:8 y& n) }! y) E
inspect <expression>0 U. C/ N( i3 ^; d
when <constant_list> then% h" a' r4 ~1 D g7 e, l/ A8 B
<statement sequence1>;
2 C8 U/ K6 f8 X7 M7 f when <constant_list> then1 _$ v# Q0 U+ E* V1 x0 ~
<statement sequence2>;
/ G/ ?5 c( V6 a: W/ P9 c0 E9 g ...
( d; Q6 p9 A. B else
+ G$ h0 ?+ y9 Z8 x3 Z <statement sequence3>;
8 A3 n! R. c0 Qend;
3 R+ A/ ^" T& W3 Y! M7 E6 ?
3 C! r0 P/ C) v2循环语句9 Y2 z% M/ J; w4 j4 \
(1) from <statement sequence1>. v* D6 f9 {2 S
until <condition> loop
& s; ]# |5 m" U7 _4 B <statement sequence2>;
9 ~& @. Z$ A& b- v end;$ ]8 `: |1 H$ {1 U4 ]6 N5 I
(2) while <condition> loop
; {4 b7 @) G- Q- I9 ] <statement sequence1>;. z6 D/ U: P# S
end;1 @) _# t* g0 L& u8 P7 A) e4 a
(3) repeat
, h; }3 U+ f& M5 Z <statement sequence1>;- ]0 ^5 k; b$ \% z/ H0 B' t
until <condition>;: X* `% M+ {1 I4 |4 g5 B' _
(4) for <condition> to <condition> loop5 g' q5 x: O# M
<statement sequence1>;. _8 ~: `# a7 P7 b
next;/ G4 {9 `+ B( Y1 q* r
3中断语句
8 W4 q) ?7 t8 \/ O/ c waituntil <condition> prio <integer expression>;
; J5 ?) B4 H- t1 Y- @; L" K4 r8 G9 z3 q* {/ h
9 W2 F; c7 z' l# e5 Q. e0 Q1 j0 M
以上为常用的函数!0 n" l7 H' P a) C/ ?" M/ A8 g
还有很多,如有需要我把资料发到你邮箱里
% ^8 f/ K' s9 R$ w! _8 w; l% U' E& L* e/ E
$ q1 `1 c, N+ M r* w6 K
% V- B! V- A/ n" e9 d @ ) y3 @2 G5 O1 }% ^3 H# b
* d- F/ ]! a" d6 X/ P u
) B4 ?3 R6 ]. ?4 [- y) l5 j
) k" E" r( n8 K$ m# r- l% ?9 f
- T4 T# w1 t% d4 C2 x: p I& V$ g! N$ v# s) M: b& X
+ ]# v( |: D4 O, B% |' u |
|