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发表于 2012-11-13 08:48:12
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1判断语句& h& `8 U ?% G- W) M
if <condition> then& B3 v7 T- F; I0 ]1 B
<statement sequence1>;
- Y# m+ [; z# C- a elseif <condition> then
6 W# N* q D; l6 Z5 [- D6 G/ t0 b <statement sequence2>;1 m8 L, J* f, M i1 c9 l8 d
else
. t; z$ i# Y' ~+ l <statement sequence3>;
, |0 X" G0 k! v3 g+ L# p2 s end;
1 ]! H+ p# R9 _% q如果分支比较多，用：$ N" @* @6 l0 E$ I+ I5 t+ p# K- M
inspect <expression>
: _+ T2 F/ V0 c' t! | when <constant_list> then
. T8 O5 N* T6 q. m' y: r, [* g <statement sequence1>;
) f% f$ a8 R7 K when <constant_list> then7 ` s1 y+ K o
<statement sequence2>;. r, Y$ R3 v: F; x8 P! y0 I
...
6 n# i* r* y" w/ I else
; M* h' k$ L5 o6 d <statement sequence3>;# s& {3 a+ }- l: m( w" g
end;
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2循环语句
$ U: j0 a* H' L' A (1) from <statement sequence1>
/ q9 x: F/ Z, e until <condition> loop
7 f+ H; e- O- [2 M <statement sequence2>;
" N3 J6 h% u' o& g+ [( l1 U/ E end;
6 O/ F5 h- Y, H% { (2) while <condition> loop
+ R& G3 u4 E5 d6 o <statement sequence1>;
' @# F, [0 y0 {. _8 V$ X. C* M end;; [$ S! B+ T6 ]7 S
(3) repeat + v& [' Q4 y/ N
<statement sequence1>;" D. O) _8 o, ?! p
until <condition>;
2 q( u& F/ k p# r! a (4) for <condition> to <condition> loop6 r% C6 \' w% V3 K) W
<statement sequence1>;' u- V7 U$ F, ?$ x% [
next;' \8 z& I9 P8 _
3中断语句' r% Q: t& g2 A5 K, c* g$ c' ]& Z% h
waituntil <condition> prio <integer expression>;3 s& g' h' D% }" l; W# C
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. c* f P9 h$ |0 U# c9 Y$ q以上为常用的函数！6 B( F, ]3 r6 e, D. |7 [
还有很多，如有需要我把资料发到你邮箱里 + C2 C1 Y* a$ D Y+ i, A1 @5 ?9 H
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