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发表于 2012-11-13 08:48:12
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1判断语句
3 a* E+ t Q' I0 H if <condition> then
/ ~. {0 c6 G+ }' W7 O$ m <statement sequence1>;
`4 U) V3 |0 H$ }0 ? elseif <condition> then
$ |* Z( f3 b' A/ r; K, q5 s: F; x <statement sequence2>;: d% T' {5 U |, n* v
else ) A. S# e& Z9 L6 M1 B& C8 U
<statement sequence3>; Y' i# l- ~% s {* y- ~! H
end;; |$ u2 A. L" m, W2 z4 ?% U |& {
如果分支比较多,用:& ]* Y' \: D- B `
inspect <expression>6 ^$ S9 K F( q8 W4 }# n
when <constant_list> then) x1 v3 t2 J' s( I$ y% W0 N3 ^
<statement sequence1>;
" o0 u5 p* k6 { when <constant_list> then
, ?$ d. R3 \6 v; s- D1 B/ ~ <statement sequence2>;
4 e3 P" @- L Z7 z9 d2 @ ...
) ?/ R8 |5 V( J$ B# i% \; ]: \ else
4 C* J% ^5 H4 [2 V <statement sequence3>;. r' h3 H# Y+ t9 a' o: @4 R
end;
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, M8 f) ~- `' l* b7 U2循环语句
$ c, W8 G6 P7 C$ `$ c/ W6 R7 y4 m& o (1) from <statement sequence1>& Z1 c3 M$ ~* n* |
until <condition> loop+ ^0 a2 s* D f: R, S3 v8 `
<statement sequence2>;+ F! [7 ~1 i: k2 C, z
end;" F7 S6 b# C. {8 q) M5 ?
(2) while <condition> loop1 k2 m/ m% F2 m' J
<statement sequence1>;
$ I+ P- G+ S- i6 J6 V1 u; O end;
' Z9 D* Y' W1 d (3) repeat
! w) i a6 ?! a5 l8 ? <statement sequence1>; K% p' K* W3 |0 X
until <condition>;9 s$ k2 C. R) L% S ]
(4) for <condition> to <condition> loop, E5 V# U& r$ B
<statement sequence1>;
$ h5 D9 s- P# w) w# l next;# U H" c) R3 y% H6 J/ h6 s* a8 ~/ b% [
3中断语句) J0 }( u: t6 X+ W! {) x
waituntil <condition> prio <integer expression>;7 P; W* [* ]* J3 E. B# e% Z
% a" e: @$ r" k, F, |/ b8 L" _3 j, b1 Z/ p8 u
以上为常用的函数!
$ t1 x4 S+ z: \( q0 ~7 {还有很多,如有需要我把资料发到你邮箱里 & z ?3 x* p5 q6 h
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