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发表于 2012-11-13 08:48:12
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1判断语句
2 a' B- ~# L! | if <condition> then
5 o0 t# X8 y) _. r1 x <statement sequence1>;; R b) V/ i/ k, l3 Q2 K% ~" [ l r6 P
elseif <condition> then
& T4 C& T+ _# X9 x3 k <statement sequence2>;" J" C, l M5 e+ D3 @
else
( H! z! Q1 b" J& B <statement sequence3>;
5 i6 Q0 Y0 N Y- D* | end;
0 V2 T8 \: F8 O- H" |* h如果分支比较多，用：
9 N8 y- q9 ^" _" l+ E* _ inspect <expression>7 K2 Q# t- F: Z6 J I
when <constant_list> then, E, G. H0 x' ?3 o
<statement sequence1>; M8 [4 G/ n. m2 S
when <constant_list> then2 N: r8 L/ f4 ^: f3 E
<statement sequence2>;" o L3 ]# N7 w1 v1 y" R9 l
...
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<statement sequence3>;; Q! y) s: u% c
end;
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* ~ {, H, S0 g# ^8 ~4 v2循环语句( n3 A7 h; @7 X& x. z
(1) from <statement sequence1>$ j7 B) G. C+ e! F, T' f
until <condition> loop
$ |# g7 s) }, P2 r6 ?/ D <statement sequence2>;' B1 p! r4 F0 v, q
end;# ?& u; F7 C+ i& Y: @
(2) while <condition> loop
6 u: L P2 |& g( j <statement sequence1>;
* p Y$ H3 p' w5 `8 r) K7 A) t. C end;. f$ d b1 ]( Z) F$ U4 C
(3) repeat
9 ^: B) E r' T8 R3 u0 h% F# k <statement sequence1>;
. `8 s+ [1 k i until <condition>;: C* w) `9 Z1 n% b# z7 T8 j
(4) for <condition> to <condition> loop
+ C* h8 J' O6 r) O <statement sequence1>;
" e3 P" e {! z) Q. ]+ V2 j next;" D7 ?# `# A( ^* Y3 ~& l. J# E
3中断语句! |$ H2 }# X$ w8 A8 a" D
waituntil <condition> prio <integer expression>;, ]: z; _+ y: n; S& x' z( I
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以上为常用的函数！ w( @! x4 M& ^9 ~- V
还有很多，如有需要我把资料发到你邮箱里
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