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发表于 2012-11-13 08:48:12
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1判断语句2 M& e. P' h' O y* F: A0 ?
if <condition> then
$ w4 T8 ~* v) W# `6 y/ @$ K; ] <statement sequence1>;
3 ?. p1 \6 y* `# ?: a elseif <condition> then/ K- W6 I* g5 R) S" W7 l
<statement sequence2>;1 V* t; q3 \; ?7 q/ [
else
% Y0 ?5 z1 X1 V2 {2 J! F7 g' Z& e <statement sequence3>;
; N" k8 p* X6 Z( B* G$ ] _ end;
8 Y4 E. ]1 ?9 w如果分支比较多，用：
6 a# n7 O# x) |- i/ N inspect <expression>3 k X1 y, [1 g6 v9 A
when <constant_list> then
) W) B% G- J/ W4 ~+ A/ V <statement sequence1>;
1 {, R( U% K) P. k: e when <constant_list> then' q( ~1 ]* p5 T* |
<statement sequence2>;! F: D6 E+ ]) r7 c1 S, h6 P
...1 [) y* [# c+ B
else6 x, |) G7 G9 i: m, B
<statement sequence3>;! S* Q8 J. k. x7 W% P
end;1 H n5 R0 o1 y' A1 j
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2循环语句, `, `0 _) ~( K6 ]$ L V
(1) from <statement sequence1>
6 y6 z7 q3 H& S% r V) z until <condition> loop1 S7 r( a5 H$ \+ G/ u9 z4 i
<statement sequence2>;
2 K. {# ?. ^+ x/ L- H/ P4 v end;9 p0 N6 o6 {. t4 j; v
(2) while <condition> loop
9 x, _: z; Y0 f" \) |7 L <statement sequence1>;
9 m+ L/ B1 Q/ C. r, G1 _" g, c3 Z& T end;
! J+ Z8 f1 [! O% F r0 z (3) repeat ' D) p5 @& x) F6 I; |
<statement sequence1>;
% _! T2 u- D; a9 m. k8 ? until <condition>;
3 G" S1 S/ P2 G+ r, w: M# H (4) for <condition> to <condition> loop
* I" {3 i5 s9 u p* r0 ~! u- x <statement sequence1>;
J0 q- P; F% M) m next;
, m; W$ l7 p) N) e5 {4 b! j0 n' e" \3中断语句
# {4 J- e+ C* `6 ^. {4 \) e" a waituntil <condition> prio <integer expression>;
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/ U' V! P1 k8 X; u以上为常用的函数！
4 V5 T. w6 O0 ^; W# x9 B还有很多，如有需要我把资料发到你邮箱里
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