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发表于 2012-11-13 08:48:12
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1判断语句
6 w f$ h% U9 P: n/ G W if <condition> then
' E6 Y8 n3 W$ T( i <statement sequence1>;4 J( c \2 f) t
elseif <condition> then
5 U7 }# w6 W3 h0 o) c- }' | <statement sequence2>;! R! F8 e. w' I8 J
else
6 u1 g# O D' d, c( Y+ V* V <statement sequence3>;
; H( L, D- ], g W, u( u end;8 T/ H- z( o" J% p) Y- ]5 j$ `" I/ p
如果分支比较多，用：
+ f9 B# n1 g, d inspect <expression>5 b, W0 R1 |- R$ P) \3 d7 x; Q' I
when <constant_list> then8 w' o, I" b" ~- ~1 n
<statement sequence1>;' @: T. J4 F2 t/ b* }
when <constant_list> then0 z# Y: F i% v. m' f- k
<statement sequence2>;$ J7 T) f: D4 P; H1 w N, ?- h
...6 l+ W7 S& C7 T+ _9 ?# P* L0 \7 W
else e5 T( X/ D/ u: \0 e
<statement sequence3>;+ r1 a8 m3 M2 n, o; O
end;3 Y& s2 i& i; p( E5 w/ Y4 ?: C% |
o% j1 a5 w( U! {3 [" X
2循环语句
3 Z6 o1 S/ J0 `6 [( k" } (1) from <statement sequence1>
, S/ `) W1 p; x9 q! C until <condition> loop
! r+ H* K. e5 E# d6 a <statement sequence2>;: P$ M; y' w& V( y) ]9 K; Q
end;
- k3 j5 H5 I0 T! y8 [$ p; B3 q (2) while <condition> loop
9 o. H! ^' x9 Y; P1 H6 x2 @ <statement sequence1>;: N, n1 m( w- l0 {$ D2 S
end;1 k, _3 J, z9 q' v5 W" E) E: Y% Y
(3) repeat
1 v. @ S6 N5 D9 U7 {+ z <statement sequence1>;
7 Z) P f2 @, {& B! t4 k* f. {( p until <condition>;
' C- y( @& L3 z$ _+ }1 D (4) for <condition> to <condition> loop% d0 ?! E( C) h' L. @
<statement sequence1>;% O( e$ d9 } y) N0 V+ B8 X4 ?9 @) |
next;+ j- ]6 _4 R& b
3中断语句4 L D- [% g/ y, m
waituntil <condition> prio <integer expression>;5 P% f9 _% ?$ z
* e: ?1 [/ W z' y) n( r3 c
0 y& J; S; B4 k6 ^
以上为常用的函数！
@ z2 y+ v! X" V2 u Q4 f还有很多，如有需要我把资料发到你邮箱里 1 x& v( A, J/ Q% ]+ o4 |& s4 g
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