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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
# q; `, L* h/ I if <condition> then
0 O, n& H, f' ^$ ]' Q( @' o9 h <statement sequence1>;3 t" R7 w. \ X
elseif <condition> then: v3 q/ o3 n8 n6 T, y1 \
<statement sequence2>;' j$ O" Z6 ~- L2 n. i0 z
else
+ ~+ m/ c8 U2 Y# h, m. v <statement sequence3>;3 k$ W! Q$ m9 Z2 V! X# k
end;
{+ I+ O3 b; }4 z! S如果分支比较多，用：
5 B% O) c3 M x8 B( t# F- H inspect <expression>, ~6 R, R, N$ X( }0 I8 v
when <constant_list> then# f+ @" |1 ?7 S& Q1 z# O4 c7 h
<statement sequence1>;- Q! W1 ?5 x5 k% l: q
when <constant_list> then7 T) y; a8 ~3 z- |
<statement sequence2>;
, I; {7 {5 e4 ?3 w ...
. Y+ i" I7 x+ K) ]/ B7 a6 h else
( ]% F' O% k( z# S( |5 o$ _; [ <statement sequence3>;
9 w2 a5 k/ q: ~& w# x! qend;1 I% K+ c% r3 ?- d/ v! p) p4 K
& H+ Z* F( `6 S! p+ H6 Q2循环语句
6 J% [; e3 F/ f2 c( f (1) from <statement sequence1>
& ~; S9 B+ T5 t until <condition> loop
/ j9 \& y% r- j8 ` <statement sequence2>;- q+ y+ d/ x$ s6 P Z1 j
end;
) M' o4 ]; ~$ A1 s! M l (2) while <condition> loop8 V$ P+ i4 J+ o. ]
<statement sequence1>;7 \/ e2 r- ]5 P: Z" Q; ?
end;$ h" G+ ~: u9 [% j* b
(3) repeat % O4 F9 v) m% I" d/ W# Q, k
<statement sequence1>;* t/ F- G5 V. o; s( |2 ?
until <condition>;$ A2 I* d0 Y* N' g1 B
(4) for <condition> to <condition> loop
3 j' {* ?( L% w6 s/ \ <statement sequence1>;
- c! N! j2 Y$ l1 g next;4 P, j5 h l0 M! X2 L* ^9 R
3中断语句
7 X4 J; H' F2 x+ p/ S waituntil <condition> prio <integer expression>;
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以上为常用的函数！9 g: S( {' C4 O4 `; C
还有很多，如有需要我把资料发到你邮箱里
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