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发表于 2012-11-13 08:48:12
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1判断语句
# U/ H& f! J4 p1 e if <condition> then6 i( u" E7 g9 s: d& ?
<statement sequence1>;
! W! l4 W5 R3 G4 } elseif <condition> then: h5 s9 K6 m3 Y7 C% c
<statement sequence2>;
$ _5 x8 A) x- Z else
( D% G2 L6 u& \( G: M# ]" o <statement sequence3>;
1 }! o' m4 _/ ^8 m end;
3 \7 E3 ]" c' h8 A+ z$ |. C如果分支比较多，用：
, g" o" }5 r2 n- o' t% U4 m) k inspect <expression>" k k3 R. u$ T( W! Z
when <constant_list> then
4 ~7 m6 g M. l" H2 U$ U' w8 N1 x <statement sequence1>;/ _! ^, F. N* D. E1 i
when <constant_list> then
: N/ `; I8 A6 h1 b <statement sequence2>;
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else$ n/ U2 H, |$ x8 ~7 r+ e4 Q) @
<statement sequence3>;
4 W" h$ N; ^- c$ ^6 }" q% q+ Qend;
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* ^" f9 g" z; w8 Z; M) s: N2循环语句6 ]# I: E- F. m$ R, T$ U/ p
(1) from <statement sequence1>3 V6 z: W4 u% o) q* U; F
until <condition> loop
' J' t* |0 ^* d/ C( S s! O$ o <statement sequence2>;
' P$ j! r4 ?2 a' M& C end;
3 m+ ~/ n3 T% _% S7 [; L (2) while <condition> loop
: b5 l# J/ z6 g) } <statement sequence1>;, V7 g& T! W0 B# r" m% X4 X, ~
end;
+ ?! s1 i p5 X9 ^9 y; F! a7 a) c+ F! F (3) repeat 5 a' L( f$ a% x2 O3 N8 ^
<statement sequence1>;) S5 m( ^+ I( t! ?9 ]- ^& V
until <condition>;5 E7 [: q4 I1 d* k* B
(4) for <condition> to <condition> loop
! t" g9 J4 q/ o% d# o& [$ ~/ \ <statement sequence1>;3 e4 g- V' { M. t0 H
next;3 ?; u+ d5 E' O$ d
3中断语句
; v. Q- X' h/ |6 B; b) N waituntil <condition> prio <integer expression>;& g1 A7 f' H0 E
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以上为常用的函数！
* ~$ y' k [; K/ X( m% G2 C! o1 P还有很多，如有需要我把资料发到你邮箱里
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