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发表于 2012-11-13 08:48:12
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1判断语句! k3 {) t" {& r/ n1 j p; [$ u
if <condition> then
: g- G# _) @* L1 K <statement sequence1>;
2 V7 J* f. H5 k( | elseif <condition> then
( \+ g! d0 K1 A' N- S2 G <statement sequence2>;+ q O9 i% g& ~4 `2 i3 T9 c! E# p a
else
$ {. l6 \* e* r- B1 A <statement sequence3>;7 ]2 F6 k" t/ x. E$ M' |* H# e z Z' e
end;: c; y+ S. B" p8 c
如果分支比较多，用：% H/ d! w: A( |5 E2 t% z# x( G! P
inspect <expression>
1 ~$ c2 q1 K! b: X* ^! W when <constant_list> then
" f+ `* g5 F; r5 ~" C0 I! O: U/ K <statement sequence1>;
+ _. t$ t9 }$ Q when <constant_list> then( ~5 {, G& S( Z+ ?
<statement sequence2>;( X9 B% t2 D; z
...
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<statement sequence3>;+ v# f$ T L1 a* M! m) v
end;
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% o8 f* A& I! ?2 s$ D+ n- S2循环语句, b( d6 ~' _& d5 w- b
(1) from <statement sequence1>. c- M0 e' ^! ^3 R' A
until <condition> loop& \+ F n( N; q: i# I6 e3 M4 {: G
<statement sequence2>;
2 i. p3 Z4 O3 P. [: I7 R% C end;
9 [8 P6 w, M! O! @6 v' P$ E (2) while <condition> loop
6 j* C+ c4 b& E" Z <statement sequence1>;* b5 Y. o( w+ s5 ]3 L( ]3 H r
end;
/ c; a9 N; q4 }8 u Y6 s (3) repeat
5 d) x5 _' \( \+ I <statement sequence1>;
7 @5 f" B( h4 t- I until <condition>;
3 r, l5 [; P+ o# d: g+ i (4) for <condition> to <condition> loop
$ C5 |: K7 k V! i* r8 i <statement sequence1>;8 i& {- d7 d% P7 |( v. @. A
next;5 W& B4 L9 t& m( J6 I; U( P
3中断语句
/ z( |- d$ \% S& }- b% A waituntil <condition> prio <integer expression>; c* D$ l1 b9 f/ n: o/ w- m
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以上为常用的函数！
9 |; ^" ]2 Q) C7 K还有很多，如有需要我把资料发到你邮箱里 ( x3 j2 ?1 d5 B6 G
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