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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
2 E! T8 M" @% r" W9 S+ y8 s if <condition> then
6 i* Q' f: \4 P& E4 Q( Z- T <statement sequence1>;
# O" D, F/ d# x; n( h elseif <condition> then8 P* ^/ R% X( U( s5 u! U
<statement sequence2>;
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<statement sequence3>;( c. C* `6 V5 Z x8 S, c
end;% d% O# R$ C: S& c' U+ n
如果分支比较多,用:
, T; {; {! d& q3 L4 h" k" B8 Y inspect <expression>
. A% I5 a2 n8 }( Q4 \$ V when <constant_list> then
3 w# Y7 J8 f4 O# l% R <statement sequence1>;$ }1 B, q( N3 H# |7 A- Z" B" |+ H
when <constant_list> then# Y1 k) W" o* \6 \4 S. X4 Q
<statement sequence2>;2 m& N' r- p* ~2 }" V$ U
...
$ D* ~5 \' G: c else
5 g8 L, |* F+ h" e, R& ^# Z+ h <statement sequence3>;
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2循环语句
D H3 }) o5 _' c (1) from <statement sequence1>) M" F3 H9 x4 \& }
until <condition> loop
6 p1 Z: X7 Y ~. Z8 W4 k <statement sequence2>;
, I* S3 X+ `( V3 G, H end;) \# k) u# N- m& d$ F6 W6 k
(2) while <condition> loop
. H- V3 L9 Y8 {# I <statement sequence1>;
* ^ W- ^* Y( D/ _$ @ end;0 [2 U5 n1 t5 H
(3) repeat + K* H& `8 m8 h( t
<statement sequence1>;
7 s& [+ P2 R, w2 ?3 G; j until <condition>;0 i$ _: N# E( i( S
(4) for <condition> to <condition> loop. T* b( K- }7 G! g" q
<statement sequence1>;2 d. m. o; S) O6 a
next;6 z3 K: C# r( V6 c: W8 J
3中断语句/ w) V. G8 O' t7 z
waituntil <condition> prio <integer expression>;
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以上为常用的函数!% O7 v2 F& c4 A6 ^
还有很多,如有需要我把资料发到你邮箱里
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