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发表于 2012-11-13 08:48:12
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1判断语句
8 P$ @0 Q, A/ L& ?$ ]1 T if <condition> then" X* p) b( b1 ~! V
<statement sequence1>;0 ^6 l1 H8 w6 t; d% p; b, n/ Y
elseif <condition> then( ~: A. x, L; H9 T/ u- N; |
<statement sequence2>;
7 A$ X' d* @: G else
' @8 i {, h* r z <statement sequence3>;) V* s$ _5 N& v' A
end;
7 s8 s( x% W0 H如果分支比较多，用：
( s( g. c( M/ w) { inspect <expression>/ @6 w# p. V! t3 d( p
when <constant_list> then8 h. {6 U* }& J( }$ n4 {
<statement sequence1>;
# r& `. g" C' g/ B' T when <constant_list> then' E9 O6 y! t) y
<statement sequence2>;9 T- H/ v+ ~1 G
...
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<statement sequence3>;* V+ \& d4 [: [" z4 T
end;
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( i& C1 k* i! y8 c/ _ d6 C; `; m2循环语句
4 \2 B* K6 w5 a" X: } A2 {$ l (1) from <statement sequence1>
2 f1 @6 ?- j8 e) A, Y6 c6 r: B2 o until <condition> loop
& T& x/ a) v+ @+ S <statement sequence2>;
- x! U/ t$ j0 v, A end;
; n! a2 B8 b/ K- y. w: f4 [! f (2) while <condition> loop
) I% {7 }+ r3 _% s <statement sequence1>;) y, ]$ Q6 V& e, D, R! B
end;+ [( ~( A% f1 ~( }
(3) repeat % }" ?- S, @% p' d- l, V2 D& U' ^0 @: e
<statement sequence1>;9 a8 \. n3 ~, j( X; x
until <condition>;' d# J% z: S& X6 N* U& `/ V# B
(4) for <condition> to <condition> loop) [- j5 ?# P- F) ?, f! {- @( @
<statement sequence1>;$ W; Y# x3 T3 p8 Q# j
next;
5 W* w9 X0 s4 W! f3中断语句
# T- ^ K; R, x waituntil <condition> prio <integer expression>;8 u/ ]$ b1 d; B) ?
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G# G( i+ g4 C, }1 G0 L以上为常用的函数！" L! s4 @5 g# x! P8 E j) p3 T# L
还有很多，如有需要我把资料发到你邮箱里 0 D4 q6 r; p- F# V' {2 C
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