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发表于 2012-11-13 08:48:12
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1判断语句
( j& n5 N! d& ]. w& v if <condition> then
/ O" u, X, I4 F3 U( b. S) x5 ] <statement sequence1>;/ X% U0 ^5 m: `, H) c
elseif <condition> then
6 J. U8 }9 |- G+ a- | <statement sequence2>; m3 ?* S6 ~1 V3 \% B
else + N: D* ^' t- S* k2 N
<statement sequence3>;+ _1 D' r' t& a1 C) i; C
end;( ^; I; F; |/ h+ y- s, `
如果分支比较多，用：
% `/ `: k! A/ N4 I) M+ G1 z2 a ^: u inspect <expression>
# Q# }: d- I J4 R' U when <constant_list> then1 h& `& z% N5 w' t# @# B( U2 E
<statement sequence1>;
" n% P( l; g# R( O when <constant_list> then
4 i1 P* {3 f5 a" h3 H E- s <statement sequence2>;
" h" e3 H# P( p5 A, o ...
& C* x: z! m- @ W- T else
. u8 f1 h5 J' Q4 s3 P1 a <statement sequence3>;
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' ^2 m: H, A6 d: t( }2循环语句; _5 A" k' y9 o
(1) from <statement sequence1>! S( ~( ^" b, y+ W ?
until <condition> loop
: m% | e1 l' c& D1 z, [ <statement sequence2>;
" l, C& E, h; C/ t( e" h end;! E7 ?/ p8 h8 t7 @' H1 U
(2) while <condition> loop1 ] N0 |. {) N2 o4 b
<statement sequence1>;) d; p5 ~) m. f8 N( E
end;
! }5 N( z% ]( W% o" D; l (3) repeat
+ t/ M, y4 ?( e z <statement sequence1>;. L7 y( E# t3 O! y( I1 I
until <condition>;: U' K* c" G: D* m9 \3 x5 e
(4) for <condition> to <condition> loop
. P4 x7 d m2 Z; z, M- g1 } <statement sequence1>;: S8 _% ~& t0 {/ _, i0 z/ r! I) {4 W) R
next;6 d4 R$ N# H& W& \# }$ {
3中断语句. g8 c/ h' P& X# ~0 V% ]
waituntil <condition> prio <integer expression>;1 ~5 F: G1 o5 k
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以上为常用的函数！; q6 G+ T# R0 m* G4 a0 V: ^. q- X
还有很多，如有需要我把资料发到你邮箱里 $ I* K) i' c; w
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