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发表于 2012-11-13 08:48:12
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1判断语句9 ~( d+ I2 w& }) d3 z. Z# ^7 Q
if <condition> then% [7 A: D; f9 F( |" W6 {
<statement sequence1>;2 F( _$ p% a, u/ z. G7 S+ t! J
elseif <condition> then
0 S8 X1 q9 k3 A3 d! X O- E <statement sequence2>;' g) X$ ]$ n9 h( r+ W( B0 w, p
else
+ B5 B5 L$ e/ N" J <statement sequence3>;
$ Q1 l3 N6 ~$ x3 E end;" \5 _$ m ?6 S- k% w
如果分支比较多，用：
% z( O6 |" `8 k/ s inspect <expression>
6 s' s6 i. d$ K$ ~+ L- o. M& Q) i when <constant_list> then
5 D; D1 z$ ^5 y4 |2 a <statement sequence1>;
9 j! |: x. W W8 R when <constant_list> then% M2 t. G7 J2 `& `: [, C
<statement sequence2>;
: r2 ?% U% ~0 V! @, K, G ...
/ m% E7 | o( ? else
) ~; O* D3 j! L+ F! d5 l* M <statement sequence3>;0 f; i- }& @/ Y# ~, g
end;
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2循环语句* r/ ?1 Q7 l) H" j
(1) from <statement sequence1>8 c5 `. O& b; X }
until <condition> loop
4 }( H/ w" L6 }- R/ K <statement sequence2>;& t" ?) r7 x" d/ E# ]. V
end;8 b, s5 }1 X/ l9 G2 e: U" M X
(2) while <condition> loop. q. o- k) N& m) q: X% _9 O' \- t' T
<statement sequence1>;
. X+ E ?# j7 s R7 Z8 P* O r" ` end;
5 e1 t0 Y5 `) V- b4 X5 v (3) repeat % g+ v! [' Z9 k$ |* V$ w2 q
<statement sequence1>;+ Y0 @& G3 R! _- [# j: b. i: G
until <condition>;
. [1 `# z0 h& {, `2 f7 { (4) for <condition> to <condition> loop8 c; h, X) ]6 l% I8 W. h+ O
<statement sequence1>;
2 D9 K) K8 h* \/ F next;
& `( L. d2 N) A4 _0 v' w2 A. n# r+ Z3中断语句
' n/ S( r+ ~% B3 m5 G# ~ waituntil <condition> prio <integer expression>;
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2 \3 [$ }* s& k7 ~3 d: R; p以上为常用的函数！
$ O% I0 z* `( u! e还有很多，如有需要我把资料发到你邮箱里
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