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发表于 2012-11-13 08:48:12
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1判断语句0 z* d- |) ~- g: x
if <condition> then, z7 @$ Q3 G; T# F! w
<statement sequence1>;
2 ]$ ^6 ?1 F( O7 q3 k/ G elseif <condition> then: e' k9 v) ^8 V5 ]% p
<statement sequence2>;& h; b/ ]4 q. _ ?
else 8 ^- h& k$ ^( ]
<statement sequence3>;* J2 Y. h0 U4 D1 h; A
end;) s* V5 s+ k1 [+ ^& v
如果分支比较多，用：) v Q+ L7 u( f: F! B) R9 }0 `$ s
inspect <expression>
: F. R# B `2 g/ T7 u' H when <constant_list> then& {1 m3 m% n# U$ d! R9 g
<statement sequence1>;
6 s$ V |& P- h7 ` when <constant_list> then
{8 Y# Y% P) o# m( G. _# [6 ? <statement sequence2>;
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else
( h. @- Z+ t: r- q6 u& n8 X <statement sequence3>;" ~2 q& ?+ T) s
end;
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2循环语句. f7 S' B5 j4 x0 j& i" w) P. ~
(1) from <statement sequence1>( u0 t; r2 Y# V$ \( _, s; k
until <condition> loop
0 ~! s: t# B7 a# b' @1 h& E <statement sequence2>;9 y# L& p4 \) b2 H4 w& G' W
end;
; Q" O" _% j# A+ ?7 Y1 k2 ~# O (2) while <condition> loop+ Q k1 E0 \. n3 J
<statement sequence1>;
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(3) repeat
- L7 ?2 t8 q) F8 i: Y: D <statement sequence1>;. k: e& X7 \8 N+ P4 {4 |8 G* s7 l
until <condition>;. p! `; j2 R4 M. _6 J7 r4 O
(4) for <condition> to <condition> loop
# w4 u" i6 Q4 f9 }6 ~. F <statement sequence1>;# i; H9 g# L! A3 I0 @. ^
next;
: M t X* Z. R$ Z1 e3中断语句8 l" i F8 z. D* c1 [7 p
waituntil <condition> prio <integer expression>; q9 b( T) ?, F1 [+ d6 d9 q4 Z+ R
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以上为常用的函数！ F a* [# [; T0 d
还有很多，如有需要我把资料发到你邮箱里 ) `& T1 P" t& o& f6 y$ P
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