|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
) e/ S4 r9 n7 e* b: p if <condition> then
% r( |, W' v) }1 N1 P! r <statement sequence1>;
" s- r# S- j B' K; ?$ X/ a elseif <condition> then
$ t5 p5 @, e1 G9 n& ]2 V0 t <statement sequence2>;
2 }, a/ O( h* {; E. U( Z else
+ D- |1 e) n) {! s4 I7 a <statement sequence3>;
( C4 e% G( d: i* Q# u4 b5 q$ i end;
2 R$ E# {5 ?% Y! t如果分支比较多,用:. d' \8 w# l5 t
inspect <expression>
+ Q- O8 H9 ?$ _- \/ v when <constant_list> then2 p- P& }7 C8 v, Y9 \: a
<statement sequence1>;7 \4 ~" h. Q$ ]. h7 M- k
when <constant_list> then
/ b4 B7 X1 q1 k <statement sequence2>;
! a4 l/ F( }8 i ...
- f# N9 s8 B& H) U9 ~. H% ?* @" x4 P5 x else
% ]- H9 o D# a7 H6 h <statement sequence3>;5 l9 ~5 g2 f4 y0 W4 Z! Z" N
end;
) x3 F; t/ ^2 T# }* n- R1 `9 P4 g$ h5 u h8 H8 K, e- _$ k
2循环语句& |. M3 g$ A9 {# h, [
(1) from <statement sequence1>
; S# b6 H, L3 ~ until <condition> loop
* N% Y, Q# {9 U5 ~% L <statement sequence2>;: h2 W* \9 {6 ~8 T T8 p2 @
end;
2 R- E7 c" A* U (2) while <condition> loop
) E& Y/ C6 }! c6 ~$ o# P/ z3 \ <statement sequence1>;, v7 f& w5 F1 J% A3 g$ w+ K* c
end;6 y. w2 ^( h; K K0 Y
(3) repeat 7 G3 T9 K- J1 \3 q, k9 P' ^
<statement sequence1>;9 `; u/ A( L* N8 d7 r. @7 M
until <condition>;
" {) N: M& Z7 Y6 m8 l i2 V2 e (4) for <condition> to <condition> loop1 d+ A8 z% x7 h4 H/ w
<statement sequence1>;( R7 N' ^% N8 T& }& W' K
next;. Q6 J! {% y# Z
3中断语句
" d, Q& c( C: L- T0 O: R+ h' [6 c waituntil <condition> prio <integer expression>;4 I+ o' n8 z G1 a
% T5 m5 \! F# s s4 J# M
- b! P0 }, S6 z1 x
以上为常用的函数!- s9 ~1 p) s' N8 \5 ?; u
还有很多,如有需要我把资料发到你邮箱里
7 Y' n+ ?2 l+ A4 U* e o) l
2 P @1 `# h( S( I
( L# m4 b& ?* [& ^& K3 V) z# k1 @6 h4 }$ J- B- K; j
* e4 R5 F( y! n) A9 k
6 P: m- f; |( t, y* R4 }3 Y q. ?7 C' b2 F6 x" S- D
0 ~" e+ f' @% F, x
# ^) J8 N+ h. F8 N, i& I8 B6 r( m6 T5 k& |' C/ O1 t
8 S( v' ]' Z' c( ~; q& b- F' p1 [9 o
|
|