|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
+ A+ D9 I/ g- z" ~ if <condition> then
3 G& Z, P! e6 [4 D+ L! s <statement sequence1>;% _/ d! {8 k- R- w
elseif <condition> then
2 ~- P* o: d _2 Z <statement sequence2>;% A- g( T7 j" A! A. Y" p; ]
else
: j7 M8 C7 S9 P% S <statement sequence3>;
( e! p6 ^7 ~; k: k8 }+ c. y7 S end;' A/ |: M/ X2 A' U! x2 z( W! Z
如果分支比较多，用：
$ t$ C* D8 C' w* s inspect <expression>5 G3 [; b( J/ o, C
when <constant_list> then$ c8 e: q; M% l1 K
<statement sequence1>;
% C& ]0 S" E& s when <constant_list> then
) c9 n% l8 Y8 B <statement sequence2>;
( H4 ?5 B' \) O& d$ S ...- P6 L/ N: `1 {( h9 A
else
) Z( F! Z; x* v, P. s2 H9 ~7 @ <statement sequence3>;6 a! t, J. M4 X/ _) J
end;. D0 w& f4 B) T0 P0 ]" w
9 f# n3 m; F0 F: s* R
2循环语句
9 K% E9 e% V7 G* |; H (1) from <statement sequence1>7 u# v. n; {# {6 P2 U/ |8 q0 z
until <condition> loop$ N# |, {1 ?$ g; G2 r5 ]
<statement sequence2>;
6 Y+ K0 [9 z4 q! L end;
. V6 ]' q. X0 [9 P1 v (2) while <condition> loop+ K' D' N9 D3 |5 ?+ ?8 j
<statement sequence1>;, N P$ n. g# q R: @4 V
end;$ J# B% ?! f$ f3 M E
(3) repeat
6 ?1 y3 R, v- h/ S) X1 M# r: R <statement sequence1>;
4 o% A$ N; V$ \. D/ W: T until <condition>;, e$ j. a% ?- G- ]9 r+ W( a" _$ h
(4) for <condition> to <condition> loop" G j* V5 j& Z; h
<statement sequence1>;
9 y' ~9 q6 q1 f next;; D' c9 g: |7 Y: F. \3 m5 _
3中断语句
4 w) I: h: e! K; A- `( e- t: b* z waituntil <condition> prio <integer expression>;& _$ {" t3 g1 e. S: `0 K, s! H
! P2 d& Y6 ]" h% Z5 e1 @7 W6 [
9 i6 N% D I$ t. _以上为常用的函数！
% [2 I% s" u. @. H还有很多，如有需要我把资料发到你邮箱里 - ^0 G" \0 I, s/ A
, x: F: Y! V( f+ F# K# N/ b
3 _* g! @" \$ {- \6 V2 ?9 ]' k, e; x) X5 Z, }* e; D9 `
9 L( o o# r$ z: m: i& Q& Z' N7 E# l, \" o
! s7 m% i/ w9 t) P5 I2 K; N
+ F5 G3 p) x1 C+ ~9 G/ o* q) m
( t& P( }. i3 V( _6 v& ^- ? c& R
' S l, x3 ]6 H' X D
$ W2 R* D# J( A9 e0 J& O2 q: e |
|
[复制链接]
