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发表于 2012-11-13 08:48:12
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1判断语句7 g( |0 n5 H- c* Y2 U( q4 P! @
if <condition> then
1 N6 [) t' c8 S( X <statement sequence1>;! }, X3 e4 e+ |" ^' z" Q6 w
elseif <condition> then
- }$ S9 H: G+ q" Y& u( J9 q8 X <statement sequence2>;3 d6 p) q0 }* O7 l+ [& k- v
else
: p* f4 J% l6 r4 `; b- | <statement sequence3>;: U2 [; y2 y: U# t1 T% l3 `
end;. v/ Q& l/ H: ~4 W( i7 A( I3 o
如果分支比较多，用：
' r- v3 z4 f5 P& e7 A5 z( S5 ?3 L inspect <expression>1 d' u+ u" L5 ^0 @+ d, J4 a
when <constant_list> then6 E- N/ G0 ~3 r/ I" C1 a
<statement sequence1>; z) ~6 E9 x1 \& {* s6 o0 X2 C
when <constant_list> then6 [4 n& {* G7 H' S
<statement sequence2>;
# k3 ?' y5 B8 e6 R& S4 n6 t ...
2 _# B8 k/ f6 @6 Z else
8 z# M: g! _4 U5 E+ H2 M <statement sequence3>;9 m9 ~; y8 Z: Z3 i u0 q6 O$ } v: l
end;
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$ y) V5 l9 W. B t" Y2循环语句. h5 h) H( F0 m, ^
(1) from <statement sequence1>
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! ?( z# i. {( `) u+ p <statement sequence2>;
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(2) while <condition> loop
) ~& M" `# k; Z0 ` <statement sequence1>;% j4 Z3 D8 S9 U( P
end;( F- J6 F: n: q$ S" A* `
(3) repeat . v7 S$ R. u, |8 ?
<statement sequence1>;
0 R) C) O7 r- E5 ^: S* l# \$ q! r until <condition>;
% t; O G" w) g2 V$ n& r (4) for <condition> to <condition> loop' Q6 A! x, K7 v$ `9 H4 M# s! X% D
<statement sequence1>;8 A: i) z/ |' |3 Z, o
next;
+ |3 V: t0 }$ C7 H- t& j3中断语句
, }2 ]" t* f' c9 N0 p waituntil <condition> prio <integer expression>;
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以上为常用的函数！* h! j& L2 P) {3 E+ z3 F
还有很多，如有需要我把资料发到你邮箱里
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