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发表于 2012-11-13 08:48:12
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1判断语句! ^. M0 E, e4 a" j) y' u
if <condition> then
& j1 e/ |, A( H+ \ <statement sequence1>;. j( }) i4 [% x7 F) p
elseif <condition> then2 P. Z+ \% p# i0 b
<statement sequence2>; B3 Y+ M* y9 y* c
else , F8 E0 [) l1 R2 |% X
<statement sequence3>;: X% E+ U5 z5 U: U! E* O1 U8 u
end;! M' d- d# s9 t3 P. X7 o
如果分支比较多，用：$ C7 I- |7 J# \+ ?/ Y6 Z$ O5 I4 r x
inspect <expression>
" a# @7 i, ^, p; O8 ]5 O: @ when <constant_list> then1 F& [8 ]; l' O# V: p* ^+ X
<statement sequence1>;3 \" S0 _1 B) }) n
when <constant_list> then
! A. d; }8 y u% |( w! M- }3 g+ k <statement sequence2>;' a& j# ~/ C" ?: Q0 b
...- q: g% }) {% T4 C
else
+ h. N2 z) I; p- c& h% \+ g ^. m8 ^8 \ <statement sequence3>;: X& g! f2 V) N" `3 M; T6 N
end;- o: e5 [# P0 o6 [/ M$ L
4 u4 M" n5 x3 p" C$ T7 u2循环语句! S! F+ s; l6 r8 k. L. l( `
(1) from <statement sequence1>
p2 t5 B/ V$ x% H Y until <condition> loop) R/ V8 V b; r2 Q6 Q( C" Y( V& l
<statement sequence2>;# ^3 x+ c, s. z" Z1 a
end;
- m! r$ e9 i( r' W7 d. O7 F1 D% U (2) while <condition> loop( z! S/ V# y+ g1 G! K" @, r: J7 z
<statement sequence1>;
x0 b+ Z2 y& W$ @/ c, g end;
3 W0 a- d3 `8 D# @% W" Y. ` (3) repeat
" \+ C2 w+ o* a) y <statement sequence1>;
! V$ i5 H3 K9 j1 ? until <condition>;
* I3 _3 o9 s$ k; k: ^' k; c' G (4) for <condition> to <condition> loop
* ?+ I/ P7 j0 ^. E <statement sequence1>;7 q7 v. Q: @4 U& n* X5 s8 s) Y
next;
0 o7 J' D* E% F+ K" N3中断语句
6 U% a) w# x) i3 _) j* N waituntil <condition> prio <integer expression>;
8 a; L9 V- p( f5 ?$ f; g6 l/ B; t" T# x' O T7 q, u
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以上为常用的函数！
7 C0 O) g/ M, y( k/ _2 G还有很多，如有需要我把资料发到你邮箱里 3 S2 D! Y$ X% u, w
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