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发表于 2012-11-13 08:48:12
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1判断语句& b. [+ w2 S! c% @
if <condition> then
1 i. C; m7 ~- b <statement sequence1>;
9 K1 [: e$ V2 \( W elseif <condition> then
7 P0 Z" ^; o( ]2 Q. K8 M" V <statement sequence2>;7 F8 {. Y5 ? n- \
else 5 J( G% r1 A% Z2 E% c" g5 g$ d
<statement sequence3>;
. u% \$ ?9 t7 _4 A0 e, J, n end;
. {, I# s, o; }. w) H0 S如果分支比较多，用：
3 y: |7 t- s9 G& i& y% S; R3 j inspect <expression>. h2 Q/ q( z% w2 k( J; _
when <constant_list> then" {8 X4 I/ m* J! h+ e& p, m5 n3 J
<statement sequence1>;% E& t4 q+ _' C: Q& @# H
when <constant_list> then
8 Q$ m. ]. B1 p( ]& Y0 c$ Z; R <statement sequence2>; @# B) K6 k0 G- v4 M9 M- Y
...
5 N3 }& g+ I9 y. ` else. e0 j. u+ Q/ V$ Z
<statement sequence3>;4 Y% p9 j- D& @$ F% B7 v( R8 ^
end;+ R5 p* [; a% `8 ]- k, t/ q+ ^' z
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2循环语句9 e) t( T- c/ u& `( j p* [+ n
(1) from <statement sequence1>
: S5 B+ E+ W0 B6 G" I3 O# v; G' h until <condition> loop2 |; ]* G5 O8 O4 n- W- P" o3 Q% C
<statement sequence2>;2 G: z' t8 k8 j) r9 [4 b$ \
end;, i/ H) p9 N) n
(2) while <condition> loop
+ f) }- Q- o6 f9 L" l8 Q* ~ <statement sequence1>;
: w( a* t% D* R0 A0 Z" b# x% C end;: Q( ~+ q" ^+ `, w& f
(3) repeat
' x9 ?. w" n) N# r' e3 @7 l) F/ e! [ <statement sequence1>;
9 r( B4 I8 ?& s: K- R until <condition>;
0 i# v% M' V' C (4) for <condition> to <condition> loop
" ?5 D$ \1 T9 |9 L' @; q6 ? <statement sequence1>;
! [& L4 \1 d1 X! K- e6 Q+ n next;
$ t# l# v8 }9 u" [$ U3中断语句+ E1 o; S. H5 K% P1 x
waituntil <condition> prio <integer expression>;
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2 Z* N t$ Y$ m6 `# B/ g' S以上为常用的函数！
( s C. c5 ] ]4 [7 t还有很多，如有需要我把资料发到你邮箱里 / ?/ g* U& M: E1 @! }+ a7 h. Y
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