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发表于 2012-11-13 08:48:12
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1判断语句' J G% K2 Q4 ~1 S
if <condition> then
, @8 d& H" k! V& z" w <statement sequence1>;) h$ j$ g' H; [6 j
elseif <condition> then
' i4 L( C1 F0 `3 M9 f% B0 D7 @5 X <statement sequence2>;0 {- W) S' B# C2 z' c
else
% X" x6 H% v* g: C" q* I8 f# \% \ <statement sequence3>;
1 L/ B7 O _$ s' I) \) R/ y end;
4 g' L3 t5 R8 s$ Z; Z如果分支比较多，用：: v" i2 d0 E$ Z$ k# M9 d
inspect <expression>9 z- d+ }; k: @% D; V8 J& X
when <constant_list> then
" Z$ l, M- Z' q" N# U- o, F' f1 J <statement sequence1>;
; j5 i' H5 g1 H# I5 Y8 M) Y: [ when <constant_list> then+ m' ] q# P% i% i
<statement sequence2>;( x D" S; J- n1 D- x
...3 [$ j/ t1 X. Q8 b/ s0 u3 }% J
else
% k" d2 h4 G* u <statement sequence3>;
% W# p0 j8 [& K% P8 | r' `end;4 e' E8 G q0 D1 v* N7 }
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2循环语句' B/ o! h4 k0 l2 J6 U1 J' N
(1) from <statement sequence1>) D- O; Z/ y2 C- ^9 t6 T6 w* B7 u
until <condition> loop
3 n+ u: F ~* Z; u <statement sequence2>;
7 m; r7 r8 v9 g G end;3 \ Z/ X7 Q" p h2 V
(2) while <condition> loop
; k1 h1 P( F2 i U <statement sequence1>;# k/ P) _9 D3 `0 N' x
end;5 x9 @2 ?1 b9 S! [7 k0 o9 ]' x
(3) repeat
4 l, M, i+ N. E <statement sequence1>;
% i. I& @+ G4 ] until <condition>;
5 E0 n) X4 }- i (4) for <condition> to <condition> loop* J" U( G! U/ G' W! j/ [! F
<statement sequence1>;
% ?+ L4 c9 v% m next;
. x; R |2 ?6 T3中断语句$ M8 c3 t% m& P$ A x
waituntil <condition> prio <integer expression>;' d J$ ^ H" _2 l- [. ~; i
+ \. K: n7 R6 g+ ^2 X! n( z2 ~
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以上为常用的函数！! U) J, G/ j8 j* K1 X
还有很多，如有需要我把资料发到你邮箱里 7 O+ L: _5 b% `: T/ `# D
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