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发表于 2012-11-13 08:48:12
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1判断语句
6 n6 X* A1 F/ k+ P1 h if <condition> then
- z1 v0 G& e) T <statement sequence1>;
; S% K* w% p. C elseif <condition> then) E' T+ G- J0 ^! R/ o
<statement sequence2>;/ S4 c, k1 }2 l4 }3 ^
else
; k$ N* v( D; K. u' E5 | <statement sequence3>;
0 P4 q+ l& Y3 e' C- Q% Q end;# O9 S; G9 V5 I6 s
如果分支比较多，用：
$ B* c% m0 | |: C' i. q/ w1 k9 P inspect <expression>
! d/ ]9 e9 i. I; C5 P T3 u9 Y when <constant_list> then
* R) g5 T- ^: S' F ~+ b& I2 E$ R& k <statement sequence1>;4 u2 N( o- O1 p5 h' h; |8 E/ r
when <constant_list> then& M0 ~1 z% s: f
<statement sequence2>;
" ?0 o( g, Q" k* w ...
7 q b0 ~' K$ e( t" l# q else
: B& V" Z' f' F <statement sequence3>;- b/ R8 z8 n0 l# F
end;
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2循环语句# g6 r2 R! [, O( q& u( M2 y- n' f
(1) from <statement sequence1>
) ?& I' \* t' K( T3 l$ R/ e2 w* b until <condition> loop
: k, `" Z3 d0 i <statement sequence2>;
4 r h, q D4 x6 q% x9 d end;
7 Z! ^8 X; R+ B7 Z (2) while <condition> loop
" C( S+ a1 N6 ~/ j/ C <statement sequence1>;% f ~0 H/ C; q$ L. v
end;/ W6 O+ p' F# g. T8 M7 R5 p
(3) repeat
i' ^) K" J; m% R <statement sequence1>;
/ `9 J0 j* \- v6 a n c7 S until <condition>;, t6 Y1 `6 r" w/ u8 |! W& d
(4) for <condition> to <condition> loop8 O4 _0 B( e$ k U& m8 C9 X! m
<statement sequence1>;+ T; _5 u8 |2 x) f8 _# p0 S9 \9 Q ?
next;' J l7 F. `5 z0 _6 n
3中断语句8 R s* O$ s& c, d; R( k
waituntil <condition> prio <integer expression>;4 d* @6 B. y# t+ G- R
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以上为常用的函数！8 [6 z& Z2 [4 p( `
还有很多，如有需要我把资料发到你邮箱里
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