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发表于 2012-11-13 08:48:12
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1判断语句" m9 i- n4 t: P. x4 P. d
if <condition> then; ?" ~6 Q: R" E& G# M9 v2 {
<statement sequence1>;+ N- L, m5 a% y5 s( G/ {+ |0 U
elseif <condition> then$ K! C: u3 { Y- K# h& \+ }
<statement sequence2>;1 _' K6 \, \# ^/ t, ^
else
% j" B7 A; F* P! B6 b <statement sequence3>;$ i5 w2 G: _) `( p" J8 z
end;
& @" A: O. }) r( |% L. z. U- e如果分支比较多，用：
- m/ k. {# Y! V6 F$ Y' J/ ] inspect <expression># T9 r5 `$ [; o
when <constant_list> then. s) S% _/ k( w3 h( H$ }6 {
<statement sequence1>;' K7 F5 L3 W& p3 O1 {
when <constant_list> then6 ]# A, |; y F1 v+ j( _
<statement sequence2>;. F7 q% q# H' R4 n4 L4 l
...
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<statement sequence3>;
' R4 S* e% s$ [: V$ }# h/ V! qend;
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1 Z+ O6 E+ ]0 P2 K( T$ Z6 c r2循环语句
: e0 U" b) j: C( l (1) from <statement sequence1>
/ [! l6 W+ F1 F3 m5 F$ k8 y0 T until <condition> loop4 K4 z V6 A- Z( A8 J# J; k
<statement sequence2>;
8 U T; v2 _; C% z# B end;
4 n, h( Q. _9 V; @4 b (2) while <condition> loop
3 [& l" J. m% v* ~+ s <statement sequence1>;5 h! R, q! {" j
end;
8 @2 Y- N. d0 _" C9 [% c (3) repeat
& M8 S; W0 q L" U <statement sequence1>;" ^( r$ J! y8 _' N Z' J' o6 A2 C
until <condition>;* k: H5 _+ p9 i# K2 c, ~
(4) for <condition> to <condition> loop) K+ X3 ?' |3 o c: Q! s
<statement sequence1>;2 X4 m% c1 ~) D% O! Q& a$ b) v
next;; o3 F4 i) E* D! ?5 G0 @" {
3中断语句6 ?7 n5 p! t; J; ]5 V
waituntil <condition> prio <integer expression>;4 f s2 y- L5 ^6 K) O9 i( V" @6 m
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( K6 b9 e- h% x- c3 H" \3 Q( K以上为常用的函数！$ ?% }0 w: X6 e8 i; F+ P( g2 V/ {
还有很多，如有需要我把资料发到你邮箱里 ! e$ \! _. F% P6 S5 s ~2 c$ _0 G
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