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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
! k1 T9 Y* }$ l+ c( h if <condition> then
' B* u% V- M6 y6 b3 u. J* b <statement sequence1>;/ d/ N6 C# Y' P3 B N* W: z
elseif <condition> then1 h6 z$ V. w- I8 E M
<statement sequence2>;' D; o4 S4 w# R9 F* C1 y* r
else
0 m6 V+ D0 i3 m! X# P <statement sequence3>;7 f( @' Q& V+ V" [
end;
% T% l$ I- V. H( Z, ^* s" x* K8 N如果分支比较多，用：
3 r/ Z+ ^4 Y! u inspect <expression>4 s- S& o% @& o& M
when <constant_list> then
. t$ X( U7 M# X5 r. @! @; [0 t <statement sequence1>;0 ^2 M# V- f. P8 Z9 R! K8 T
when <constant_list> then3 A' p, f7 U5 M3 p
<statement sequence2>;6 M5 {" Q E+ z$ x9 f g
...$ f- g3 W0 X* O, c: }7 e
else) q# Y4 C: ~6 ~7 h: d3 ^+ b
<statement sequence3>;
G; \: o0 i8 X1 z. Nend;
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* A9 n8 s D1 t/ z/ _1 x* D2循环语句
( z6 V' c6 ]7 z2 T) _; B (1) from <statement sequence1>
% o8 i( F9 |. M9 O% V9 @& L until <condition> loop
, {. W7 U$ j2 M4 b <statement sequence2>;. Z3 s( @2 e8 z! [% e. R) w. |# j
end;
; F) @$ Q, \0 \5 l4 f (2) while <condition> loop" k, p/ I* B3 S$ F5 v" D, ?1 _
<statement sequence1>;2 J8 j7 C o0 ^) f8 g1 ~
end;
" S* l! v: C& d* h2 \ c1 c0 a (3) repeat & H- U" e& t, Q) a, B* \0 R m- P6 }1 i7 o
<statement sequence1>;
' J0 Z9 b. } c9 y until <condition>;& s; j2 `3 q( q/ B! @! E6 m
(4) for <condition> to <condition> loop
5 |: u D) l" U9 Z7 R, e A* O <statement sequence1>;
7 f& ^! P6 E v+ F0 n' W next;1 B* _: D1 ^" k6 p
3中断语句
+ V; B' g7 D# K# Y {. N. R/ g$ i waituntil <condition> prio <integer expression>; Y' r: Z* e6 q) ]+ q' |! P
% W' H5 s* C( ~. C& @4 E( J, P) x3 L; t( O( n, f4 ?9 F
以上为常用的函数！% W/ X/ {( F [1 f
还有很多，如有需要我把资料发到你邮箱里 9 P- Q8 `5 z) `5 d( k$ I, N
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