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发表于 2012-11-13 08:48:12
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1判断语句" u. H0 z- l) j# Z* q4 u
if <condition> then
* ] S, `) J! J" O ]( {6 @( T1 W <statement sequence1>;& t0 ~0 ?* |) f9 ~
elseif <condition> then: D }0 n* e8 r' o
<statement sequence2>;
! q3 d) J: A7 \: I0 \ else
0 M8 A: C, L: f& n { e <statement sequence3>;
4 J' k0 n- e* }4 c9 h% w end;
6 J$ i* ]" l- L! Z; _如果分支比较多，用：4 d) T$ Y: L Z2 X# R
inspect <expression>9 D$ L: r$ S8 ?9 |
when <constant_list> then* O9 h5 E- O' B% @3 i, b7 V! u' g# ~ G
<statement sequence1>;' ^0 X, r4 z# I( b7 V# ] l
when <constant_list> then
; j! y+ B' r5 v; h/ ~ <statement sequence2>;
: L4 Z8 T( O9 d: F8 P! E ...
, k+ }! ~2 E: o3 ?/ c& F else9 ~' {1 M, a- ~, ^+ G$ U0 Z
<statement sequence3>;
/ f" e1 ]1 U D3 Jend;
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* `. C* T- K) F% S# J2循环语句3 V. o" h: R- j
(1) from <statement sequence1>
. Y8 x8 x% }5 n& h" Y% O until <condition> loop
2 X( W+ l* f1 p8 E" m) G& H3 M <statement sequence2>;1 K+ k7 W( s0 I2 w( u: {
end;
/ I# x1 M2 r$ d0 B8 U& {! k3 |3 O (2) while <condition> loop
5 @' Q+ y$ |: }8 G( l5 e" N <statement sequence1>;" l+ S0 v- q- @$ q* M
end;5 T' G0 K& _2 c8 p
(3) repeat 8 ]! g* \6 V- H" C7 ^* d" N! L7 h
<statement sequence1>;
# ]5 y$ K* {& e5 Z- ~ until <condition>;1 j0 k* `5 f/ v2 [, y( y' o$ O# q% @
(4) for <condition> to <condition> loop
% I5 l* e& \0 p9 E( M <statement sequence1>;( G# K" V4 a' ]' P
next;, s5 I6 `" Y# d/ [$ H5 K5 \ j# B
3中断语句
, d0 e; t- U) Z! L O waituntil <condition> prio <integer expression>;7 _* p5 k: z$ a0 z0 n: k0 Z
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以上为常用的函数！
8 ^. L$ H1 N( |; O2 i$ f还有很多，如有需要我把资料发到你邮箱里 * f0 g2 E/ a6 E+ u7 X
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