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发表于 2012-11-13 08:48:12
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1判断语句
6 D8 D' l9 s& i0 v6 P5 N if <condition> then# g$ z. `* W c" b6 e) o h
<statement sequence1>;
' \9 s. ~/ Y% j8 a3 ^- S' j/ A4 u0 ~ elseif <condition> then7 s# ]' I6 B+ ~& q+ d) |" d* M
<statement sequence2>;
7 ~9 j7 g9 a: H% _: q else
( K( h4 T& k( c# H; E. g# b <statement sequence3>;
* c w2 r ?* e# Z" L end;9 X; x/ t# Y9 l G5 D ~
如果分支比较多，用：
- x/ o7 a& A& b( }4 ]2 W" Z5 N/ }; t inspect <expression>( Z. N0 ^6 k0 h- X3 M* l+ b
when <constant_list> then" l% R) ^/ y8 t8 ?
<statement sequence1>;' Z: ^; V7 T& ?
when <constant_list> then
9 G( b* Y7 y }# g <statement sequence2>;8 h9 `5 d! ^7 L4 W$ ~
...
9 Q `- K$ j# V0 N% M/ D else
) }' K e5 q' t$ ^( T( E <statement sequence3>;
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% m5 Q; \# y6 U1 @: n I, }% u" P2循环语句
1 v$ E0 D8 T5 a( O (1) from <statement sequence1>! S. T3 e4 x0 d7 V0 `) A
until <condition> loop5 A+ j7 s: `+ z8 `2 k; N
<statement sequence2>;% a: A, ?! c' A& c9 p2 T8 n
end;. g& z6 c' V( e* R T+ Q' r/ `: `
(2) while <condition> loop6 {4 F+ v; Q/ @) P
<statement sequence1>;! v. R1 v6 r: V
end;
) ~) E5 i' j/ A4 ]& u7 F (3) repeat
/ h& Q, L2 n8 w& P: E! K" X7 t' | <statement sequence1>;5 e4 a1 ?* q1 T7 y- V7 p! n
until <condition>;
4 F* ?# o) b2 N1 u3 ?3 ? (4) for <condition> to <condition> loop* j' A9 m8 }( D+ } X: L
<statement sequence1>;" r2 z' E3 H9 V
next;2 ]$ f+ {7 t5 v# s$ |
3中断语句
6 `8 T( o6 s6 L. n5 C* B7 j waituntil <condition> prio <integer expression>;
8 Z) V& t/ d. {4 X. q4 \
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* j9 U0 C! U$ \# |; V) T以上为常用的函数！) _' q! m! F6 F ]1 Z; Y- S0 \
还有很多，如有需要我把资料发到你邮箱里 * b3 y+ H9 y; q
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