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发表于 2012-11-13 08:48:12
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1判断语句
9 }+ b+ `9 |( f% O if <condition> then
: S. U6 n. d% z% e$ ~9 H <statement sequence1>;) V# f- x. ^) q3 s/ P; q; Y
elseif <condition> then
- H6 g" R v5 J0 b; M e9 f <statement sequence2>;
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<statement sequence3>;
; H2 i' C. i. a0 P: k end;& |- {/ S! b# v0 x: L8 l
如果分支比较多，用：4 a4 y6 _4 [$ x, }
inspect <expression>+ |1 g, K/ [. P3 I- b7 x" b
when <constant_list> then5 s$ T( \% d/ C& y4 D9 H/ K
<statement sequence1>;5 v2 @4 w5 S- a1 N/ P
when <constant_list> then
4 Z# F' o. V: R! v: T/ f <statement sequence2>;, R- F+ k; g7 r: V2 U
...; h( j$ C( D% R3 d+ g3 ~' }5 }
else
/ W9 N3 A! U; v1 }8 O- t z <statement sequence3>;5 P% j& [ ]+ F* X% P3 p" R4 G
end;
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$ d. A/ L- t! W6 d/ G2循环语句' p% [' A+ X5 K9 E$ a" f! m! Q
(1) from <statement sequence1>2 H. q* J O& C
until <condition> loop
4 Q; ?! e+ O0 V# U <statement sequence2>;5 z# Y% Z* ^' ]% f
end;
9 B2 V0 L4 O, r4 N& I- M (2) while <condition> loop
* z; p5 ^$ z A3 X <statement sequence1>;" R" |" F c6 ?+ \- F% F- `% J; [" ^
end;
9 P2 `! \, R9 @! ^% v9 J (3) repeat
& F" t# T( \! Z) P- N, e <statement sequence1>;
/ l" `9 g: Y+ h! O until <condition>;2 s* C6 [% T- n" y
(4) for <condition> to <condition> loop+ h4 N3 V2 _8 {7 I. A
<statement sequence1>;% g& b; g7 b! u
next;
: |- Q6 Y, b% H; ~/ |3中断语句
8 o5 k5 }" P: B3 Y4 B* Y0 L$ Y& [ waituntil <condition> prio <integer expression>;! Q3 [( V, s! G- Y1 J/ \9 |
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7 I+ C/ w/ G! U. i4 ]8 C9 k以上为常用的函数！
9 g' p/ d V6 Q; A% \* k还有很多，如有需要我把资料发到你邮箱里 # J6 o7 ?7 ]" o, ^ u' q: i' H- s
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