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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
: W: [+ C6 j. _$ a( g; U if <condition> then9 H- }$ C& @, o6 I$ Y6 Q
<statement sequence1>;% g6 ]* x$ }' Q. P( l0 E
elseif <condition> then. q, g4 u( A1 @, S4 L4 M
<statement sequence2>;2 Y0 r) |& D* W
else : K- \6 t n$ h% w; q
<statement sequence3>;+ I* P" i8 u9 J9 `
end;
3 @0 m( v( V9 K3 n7 k如果分支比较多，用：
! s! d# z- f- Q inspect <expression>2 u6 Z6 {/ ?3 ~: O* V4 @
when <constant_list> then) u1 W$ x* q) {! [# w
<statement sequence1>;0 P. v x; ~' A# f. c/ @- T% X0 E
when <constant_list> then; k* f) q: W2 k# a( V) C/ b. @1 x
<statement sequence2>;
; a* |6 D4 _6 M ...' O6 O8 L- _8 {
else9 A4 P0 R/ u G
<statement sequence3>;3 N% N/ n! q0 v6 _+ @, Y3 |# y
end;1 p9 H9 ~/ `" g3 }" D; d: j2 m. ]
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2循环语句
8 f- }' x* r/ S4 Y3 J (1) from <statement sequence1>
- U5 f( [! M: }5 J$ c until <condition> loop4 A. J# M2 v4 N. A% d" G0 y
<statement sequence2>;
$ t+ R$ L# u* b6 g2 g5 Z! n end;) T. H) ^) ?2 @/ d# Q
(2) while <condition> loop
. K0 S( N0 C+ p3 ^" v- m <statement sequence1>;# e% J R$ S) B: v, |/ y# V
end;% S r& o. k" @* p2 R" \1 F/ b9 {
(3) repeat . c# r7 O3 Q$ f* Q' M7 W/ a
<statement sequence1>;
. f5 O$ @+ H' d) ^ until <condition>;
& E1 T( K" `) p. ] (4) for <condition> to <condition> loop( q/ v- e' u) b& U$ q# \3 Z
<statement sequence1>;
9 b% F; c5 O6 R! ]# s next;4 e5 C* i7 ]( m& _, [% V- ]
3中断语句
$ H0 d- }/ n, Y* O6 Q+ ? waituntil <condition> prio <integer expression>;0 n& D2 I8 h4 U; u
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3 x1 b2 O9 d) a9 o3 Y2 o以上为常用的函数！2 U0 F j2 Y9 l7 d) \
还有很多，如有需要我把资料发到你邮箱里 ( j9 K8 ]# \. h' p0 T4 d- S+ t
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