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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# `3 q4 [! D% |( d( N+ r
if <condition> then$ e, @! _2 Z( Y6 F2 u) S
<statement sequence1>;
9 j: C; R$ O2 o/ m elseif <condition> then
4 l( {6 \4 b# L9 B2 z <statement sequence2>;
9 o L, j z. V# w else & \% A H n: K& l: @
<statement sequence3>;
1 B1 Y6 Y' F% u end;1 ~7 }3 u( ?# g% z
如果分支比较多,用:) g* C2 A5 O" j6 G/ E1 t
inspect <expression>
1 L$ A4 l$ ~5 s7 \% j; P7 T when <constant_list> then& \2 f) p- X# C$ c1 A
<statement sequence1>;
: M4 f* m' v! p" S: E4 { H when <constant_list> then, K( Y6 d. L( j- K0 V
<statement sequence2>;" w7 ^, o" c* X# k! _
...
2 F; k. H5 u) y4 e; w else
' Z" ?/ }4 d5 {' Q/ B7 h <statement sequence3>;1 P; m7 e' i7 U& h: q; b. q
end;9 b/ H2 t% O$ v. d( ~
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2循环语句
, W) j- i* C9 X# T, R, S E (1) from <statement sequence1>
* `3 s# R% Y; a- b+ n) H/ p until <condition> loop
4 m# Q3 F4 o6 D. R$ H <statement sequence2>;
- O7 S8 v1 v( t8 _5 E+ L end;
( ^) l' ]. H. {* W (2) while <condition> loop# p& b( `& X4 K# q0 \: H8 w* N
<statement sequence1>;# z4 C9 G, H. {6 U
end;
1 a& W* a; ]1 m7 N7 l (3) repeat # V9 U% ~1 R' x" c1 ~' Q
<statement sequence1>;
1 o- D1 o. o% W$ H/ G* H until <condition>;+ m" S& }& I; d9 _& g
(4) for <condition> to <condition> loop4 r/ V9 u, w/ {! b+ g
<statement sequence1>; N0 n9 S6 w+ i3 [+ j2 U0 c3 g
next;
! l; m7 p% \# I3 Q3中断语句
0 x$ A: v0 U0 k% [# _ w; ? waituntil <condition> prio <integer expression>;2 ^. {2 B. G: m; }2 s; |0 [
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以上为常用的函数!7 w5 a. R+ D7 O) b$ ^0 f' j4 Q
还有很多,如有需要我把资料发到你邮箱里
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