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发表于 2012-11-13 08:48:12
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1判断语句$ H+ o& k: A2 `/ v! ]: n
if <condition> then
( n) D# h& @/ d0 J; P# R <statement sequence1>;
r7 D# A. f2 F2 H- r; f: K) X elseif <condition> then# x( J' Q% B* o
<statement sequence2>;
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<statement sequence3>;: w. h% P+ X0 }: K; b' [# F
end;- O7 ~) O; ^4 j/ K- x: f
如果分支比较多，用：
, y( Z1 ]/ n6 V inspect <expression>
% P* q$ z( x: U9 F* m( L2 H when <constant_list> then
6 B& C7 u6 a9 ^ B$ O" {$ J4 i <statement sequence1>;' e- ^) ]1 i; _4 o
when <constant_list> then
. C1 Z, u& L* B7 f: v <statement sequence2>;8 t4 _4 _ ~( D0 m6 |: k0 y/ v
...
# P6 \" D' |+ v7 B* \' M else
) X6 h Z; `! @9 p+ S <statement sequence3>;- a/ N' w3 K" z% { s
end;0 M" j- }' |. {2 @, Z6 [
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2循环语句/ k3 K* @9 D4 B! }0 U$ \0 {
(1) from <statement sequence1>7 P( i" v' {8 d q7 \
until <condition> loop
. H. l) H0 W+ W$ T5 e1 P0 I" x& a2 ] <statement sequence2>;
; l! o- E6 N0 m7 ?% H9 _) L/ t" Z end;
; n' [& ?! s( [ (2) while <condition> loop
( M4 [8 E2 H7 {5 |. F: h <statement sequence1>;9 b" K, R# ^5 | P
end;& B9 j- b. J" [) G' T. N8 l7 n& T
(3) repeat
0 t( z( t r: f( `9 m6 }1 p <statement sequence1>;
' \0 e- ~! A3 Q/ M# M" F until <condition>;6 l+ E6 a A( U
(4) for <condition> to <condition> loop( \& n% _2 F/ M h: |. Y1 J" r
<statement sequence1>;& D& u$ ^, n+ |* R# s
next;
2 y0 V' U* \2 u2 L; E3 d3中断语句
3 W7 ?8 b, `5 F3 f/ y+ G waituntil <condition> prio <integer expression>;0 m5 _& I+ {+ S
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以上为常用的函数！0 d. c. i! I- E; k
还有很多，如有需要我把资料发到你邮箱里 4 v0 D! g+ }0 K! D! o' b
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