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发表于 2012-11-13 08:48:12
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1判断语句/ m4 w t! G/ @
if <condition> then
& X0 ?! `. u) J' ~* Q <statement sequence1>;
0 s4 t: G i4 B$ z2 ] elseif <condition> then$ d6 H3 n% B" P
<statement sequence2>;
2 H$ x% m& d) F0 y; Q9 M t$ g" o J else
5 U: b6 A7 D0 [, ~ <statement sequence3>;, d1 ?; P" Q& q; W( a# s! Z
end;
7 Q' N9 i+ M' _! ]8 z s9 D如果分支比较多,用:) n% ^+ e4 Y3 d
inspect <expression>: S8 C& [# E, P& r" Q( a
when <constant_list> then
7 @* e/ z# Q# @( U' ^2 \3 f <statement sequence1>;
% I* [ J+ N4 y# U when <constant_list> then
2 W3 X# x$ j5 q+ e3 G <statement sequence2>;
& ]4 h0 i: k4 ~8 S+ \! [ ...
% d8 O9 K% u% h2 Q9 d else
5 y0 g0 O& p9 ]2 |6 L/ W <statement sequence3>;1 t4 f8 W: V$ Q
end;) P" a; n8 D3 _# @
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2循环语句
, ^4 t2 `: k O3 l; E (1) from <statement sequence1>
! Y8 b( |, P9 e/ J until <condition> loop+ D& E8 z9 \, m4 z5 V4 m9 b
<statement sequence2>;
' O& ~0 P1 M3 M3 F9 S9 s# b3 l end;
$ \, ?# @$ x& A0 Y8 e; @5 ? (2) while <condition> loop
5 j; d1 Z$ G' V7 ]7 S/ Q# ^ <statement sequence1>;# o6 S3 l( C* U1 f6 Y* B7 s
end;
- M z4 X1 m! i# q (3) repeat
! v; L1 P- G6 s Y; w+ \% _) Z <statement sequence1>;1 L! L% I h+ m4 O- k) L
until <condition>;
' H2 g+ v, C' G1 [, [7 P7 ] (4) for <condition> to <condition> loop
0 i% N) E( U3 a7 e <statement sequence1>;2 o- J0 q Q, r( N; r _
next;
% @: d6 @2 c ]1 D" J3中断语句7 U3 C* D! N( t0 `( l8 {4 o
waituntil <condition> prio <integer expression>;
$ [/ B+ C; n7 C" `+ {4 K# @# j+ l4 l
- R x: F* s& p* L# R以上为常用的函数!
3 _/ f' c3 I' C6 P ^. g; H还有很多,如有需要我把资料发到你邮箱里
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