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发表于 2012-11-13 08:48:12
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1判断语句$ J# `! E+ L Y
if <condition> then
5 Q/ [+ g1 E! g% @0 X y <statement sequence1>;
8 G" f$ H- |3 D& ] elseif <condition> then
/ U2 a1 H5 e: G* x9 w <statement sequence2>;8 C! o) z6 e5 a7 a4 ?# n+ K
else
7 K: M$ `% w7 ?& B# D3 E2 W <statement sequence3>;- x# |4 z: w$ J: B
end;
( R1 N; D2 r3 ]5 o# a如果分支比较多，用：7 e- ]# x: {: z9 x5 k$ x
inspect <expression>
5 ]% z% J$ \& o( w4 Z9 w when <constant_list> then$ U4 b" F4 Z- Y1 k* l
<statement sequence1>;
$ K$ W6 f$ n, K. M9 C+ Q- A when <constant_list> then7 P) O! ~, @, z: J- h
<statement sequence2>;3 `2 J: [' X' p" e5 M
...
! P1 ?. `% P3 l& n+ L1 ~/ ~5 B1 @ else
" `, a8 a( a$ S: c( `' S( J5 }9 Z8 H( s <statement sequence3>;! e+ a* O, ]: _6 J: V
end;
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2循环语句; l" Q+ [/ F: \7 P5 b% ?& }8 M
(1) from <statement sequence1>$ Q' P* I( ]* N6 ?0 {
until <condition> loop
% r% I( f' v0 ]- @1 N# u <statement sequence2>;- K( @+ I- K0 Q! b/ z1 X+ ]
end;
2 ^3 `' l" d2 d! ?1 p (2) while <condition> loop$ V, l9 b% D: K1 f6 v
<statement sequence1>;
3 L0 H5 s; G/ e1 d2 l% s end;
2 P7 g' k9 O ~; U' q; W* } (3) repeat $ B2 G o8 P) n8 k* f# C
<statement sequence1>;6 d7 `: i ^2 n3 n6 i
until <condition>;
& Y* Z, j0 t( _& U6 z (4) for <condition> to <condition> loop" \' J0 j% {' |3 s! P5 V$ G
<statement sequence1>;
, A4 k$ O3 S" r, Y( q next;
5 A. X: z: J, Y3 o g( l3中断语句
. w( {$ D2 r/ N" B6 K( } waituntil <condition> prio <integer expression>;
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$ j3 y; |6 s. {7 B% C以上为常用的函数！
. e8 q# R; Q, g+ ^" m! e8 b4 E: t还有很多，如有需要我把资料发到你邮箱里 % f- b: n- o$ w& h; ?: G2 W
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