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发表于 2012-11-13 08:48:12
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1判断语句
0 R: ^! T. ~0 Q! _9 L if <condition> then
. a8 T! O+ e, n$ u. n <statement sequence1>;
7 {5 f; d% H: n) `' M elseif <condition> then4 X8 U9 i& r; X
<statement sequence2>;, B' ^; I+ g- \2 n8 Q+ A# e; k& Z
else
2 S o5 {* c9 e; R7 R$ @# x# J <statement sequence3>;
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如果分支比较多，用：" H6 n, n% G, S9 v- ?# c
inspect <expression>8 a* n1 ~! s, q" E( B- @6 h
when <constant_list> then
: S$ B9 T( [3 Y4 N0 }% a7 Y8 r8 h <statement sequence1>;
) p2 T; H+ y# s) Q when <constant_list> then! Y& M! u, G/ N) `& z4 \, O% a
<statement sequence2>;
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else# n, n6 r2 R3 U: W5 x
<statement sequence3>;
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' N! y# L: o @2循环语句
+ N" b3 f, n' N- {: o% Z8 b( I (1) from <statement sequence1>' m" q/ o' B! g) A2 F8 g6 |6 R
until <condition> loop% U Y+ A# Y& n W v# l: O
<statement sequence2>;
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(2) while <condition> loop* a9 R* ]( i g5 W( o8 S3 O! {* z
<statement sequence1>;' w! s1 k: K2 }
end;( J! P- }# J: `% m: V
(3) repeat ( c9 B2 P4 }/ K) d3 ~+ M; o; V
<statement sequence1>;
) h( @, }3 Y% H6 P% Y/ [2 Y until <condition>;: @ f9 c! X T) a: ?9 d
(4) for <condition> to <condition> loop
3 b! }( n2 C+ [5 V7 P: | <statement sequence1>;
! x a! n2 U) ^' E0 v next;
/ T" Y" T4 f* N, @! j2 c: M3中断语句3 w$ D' Y3 G7 o" u) K* @# b p
waituntil <condition> prio <integer expression>;4 U( n9 |) l# Q
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以上为常用的函数！
& t ^$ \9 S4 e还有很多，如有需要我把资料发到你邮箱里 & i5 C7 a6 Q! f: p: L
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