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发表于 2012-11-13 08:48:12
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1判断语句$ G8 p9 m; o, k+ P; ^& `! I( b- c
if <condition> then: M/ P& w) v- m( r) B
<statement sequence1>;- ]1 F) Z3 x$ ~
elseif <condition> then6 _0 ?) ]0 {! b7 d6 [4 i
<statement sequence2>; f/ p4 F6 l/ M% [' L" t% ^, L
else
" g+ E# Q* a0 D' P: C <statement sequence3>;
* l0 y5 X8 A' E6 n3 |! S. T' t, e# M9 G end;
) a7 P7 K; S1 p4 ]) T# A如果分支比较多，用：
% x, F! C/ S( L% b& S7 ^ inspect <expression>* A' h2 z$ x# F; n/ {2 v
when <constant_list> then
4 k" E+ n: z* ~; g' I8 ^" ~ <statement sequence1>;9 N2 }6 |5 l% M6 E
when <constant_list> then/ ]9 K' A5 a5 y# b$ f% D: |% }7 H
<statement sequence2>;/ Q; p+ d0 p3 u0 l
...
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<statement sequence3>;
8 Y; w4 t' {4 x* wend;4 y7 y g: [3 @7 P3 Y9 p# ]
" t8 L3 ?2 w8 T7 B7 }2循环语句0 g1 e' c: a5 N" s9 j2 V8 z5 M
(1) from <statement sequence1>2 _. h% [% V6 d9 a8 |
until <condition> loop
/ p" W+ a7 ` h! @; F- i! F( [: Q <statement sequence2>;
9 d% U4 ~4 Q) }: T2 N* |& `3 v end;2 R: N* V8 a: H' i
(2) while <condition> loop
3 X3 q# G! [6 m <statement sequence1>;* ^) j- @7 F1 T3 H; x
end;+ y! j! r2 S9 M& P7 P3 I
(3) repeat
0 Y% I/ }: W3 {" `( \0 E <statement sequence1>;
1 O8 C( c0 s2 F until <condition>;" J/ y; e$ o5 ?' F7 Q
(4) for <condition> to <condition> loop
7 L$ }; F9 M8 V0 e6 A2 ? <statement sequence1>;
2 {, I2 b& k$ i( {2 v next;
+ v) e/ @ i2 g6 s: F3中断语句
9 K7 \) j0 o1 f8 F5 \ waituntil <condition> prio <integer expression>;
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( N& p1 o$ M; Z O6 c
以上为常用的函数！
4 B5 E" A& ~( ^9 L3 J还有很多，如有需要我把资料发到你邮箱里 8 T) G5 ]# Z0 y) n' ~1 a
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