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发表于 2012-11-13 08:48:12
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1判断语句6 ~' T* H) c1 `9 z/ s. A+ g5 J( v
if <condition> then
9 S b: m: ]% }. |; a" O/ p! d <statement sequence1>;
/ M# v% f, }; S' X6 l) z elseif <condition> then* Q" j2 t* ]/ E- \+ }. ]
<statement sequence2>;* r. Q1 b/ U, r9 ` v
else ) M! w' i) G" t4 c' ~8 m
<statement sequence3>;: T+ g; w. y! l) S5 N% K) C+ t
end;5 r% b0 O# s5 f# @- {9 r N6 g
如果分支比较多,用:* U6 F% [: t" B3 M0 I: s
inspect <expression>/ X5 y# @' k8 Y! i* a0 |
when <constant_list> then; P1 x" u' A: v/ p
<statement sequence1>;$ C- u8 |6 |: p! j2 b9 z/ [
when <constant_list> then
?; r. n, T. C <statement sequence2>;3 T8 v* Y! _1 b9 ~4 c: I0 R& p
...
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<statement sequence3>;
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2循环语句 x/ e9 d, d# F
(1) from <statement sequence1>
6 u; n; C+ ^- e( H" O0 d until <condition> loop6 z, i4 {. o' s+ @9 }
<statement sequence2>;9 E! y S8 |6 z- {! M( C h' p
end;
9 y4 l$ i8 q7 _+ y6 ^- Y (2) while <condition> loop- {- [7 T6 T: u/ T& V9 d% n& n
<statement sequence1>;) l! t' J9 b3 i1 O% s
end;
1 H6 }7 c" B J/ m% r' c4 U. \ (3) repeat
7 j1 i: A1 T g8 N( c <statement sequence1>;0 @8 G6 N6 s; v9 Q4 n. c4 C
until <condition>;
/ g1 B! l' L* w; ?+ N. u (4) for <condition> to <condition> loop
# l; b7 T* N; p3 C' D <statement sequence1>;/ X" C( X8 t3 v" G4 C
next;! Q9 D$ p2 H- p9 C/ g2 f3 f
3中断语句6 C b" N9 Y: r$ c- t5 v; i
waituntil <condition> prio <integer expression>;$ }2 c* ~. h2 h; q
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以上为常用的函数!
3 c& {# h; H6 z' X还有很多,如有需要我把资料发到你邮箱里 4 D! d1 l% w7 _! B( z$ q
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