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发表于 2012-11-13 08:48:12
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1判断语句
5 \$ C- t! p ^) D if <condition> then
5 {9 `# @9 ~6 p Q/ x. @$ x <statement sequence1>;
; N# ^4 J- k! b' P elseif <condition> then
, `( d/ W% |( |# u+ d <statement sequence2>;5 e- n5 u& _4 H
else
9 u, {' Z4 a! [) H2 a" E1 F8 i+ e <statement sequence3>;
- s( V# L2 g! a: S! ?4 V* x end; Q" g' ?+ b# C4 {% O) ^: A1 t
如果分支比较多,用:- W4 X! n! H# P# G: Z9 a. A+ N. p
inspect <expression>
( E: M }" Q3 B ? when <constant_list> then
, [6 e, [8 A$ x) n <statement sequence1>;0 \: y9 [4 ^6 `5 m+ c2 h2 f
when <constant_list> then
4 o: g; U+ G* J& z8 T6 B2 r <statement sequence2>;
3 K3 U6 ^7 @5 U6 [. g5 y( b ...
5 b5 B3 B% S2 C8 X5 m else4 b3 j/ h. k9 v5 U. ~
<statement sequence3>;
5 S" s- n4 B) B& J. Iend;9 Y% h, K4 k6 `# [" v7 d
3 H# B0 f s& S% c1 M2循环语句; @1 J$ ~ P% R5 g" W4 N0 j8 A
(1) from <statement sequence1>
! }( B6 L7 C0 k until <condition> loop( V3 }7 d, K) Q: w
<statement sequence2>;
4 T' ]; ~% H: n6 i/ \3 n8 J$ N Y& |4 C end;
! ]! c! z: y" w8 x( m (2) while <condition> loop. D- _6 i' ~; I& h5 f3 f2 L
<statement sequence1>;
7 T! ?* y) G0 E7 e" q! v end;
5 Q* P$ g2 o% m7 ~9 M" O& r1 E7 r (3) repeat , L6 k; N d9 D1 w8 X% w( `: k
<statement sequence1>;
# U- v0 C: y d+ m& w3 V$ g7 x until <condition>;
9 X0 i; O& i/ Z0 m* _8 S2 ^6 s (4) for <condition> to <condition> loop/ `& B2 L: `9 s# q4 B/ c
<statement sequence1>;9 O9 H# H1 S% ^1 M$ }- @
next; U+ G, y+ ?# Z9 z2 ?
3中断语句: q# k$ L- o0 n
waituntil <condition> prio <integer expression>; _0 X8 o& L+ B- k2 V6 x! e! K3 `
; Z$ q" A0 m. O; e( j0 u* |6 M: Y9 o
以上为常用的函数!
% S/ o) l( z3 [+ e% A还有很多,如有需要我把资料发到你邮箱里
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