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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/ W+ ^6 ?, q: g" N& T
if <condition> then5 s) M" I, l/ g; a; ?, A
<statement sequence1>;
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<statement sequence2>;0 o+ z& B+ N! b% M# c. R
else # W4 V: [* W4 {
<statement sequence3>;3 ]1 S, u% j+ @- h
end;
& j s+ T& N- x$ o9 v: ~% k: l! p如果分支比较多,用:
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when <constant_list> then( P2 g0 t% L# B2 g
<statement sequence1>;* i0 a" H* N/ ^( n; Q. _) |
when <constant_list> then5 E; U8 m; t/ x" ?: J1 e
<statement sequence2>; F/ ~6 K9 ^4 E" C7 N8 G
...2 f% Z$ X U# f* H# f
else& k* ~: l3 r" r3 Z* F" X
<statement sequence3>;% p% W1 M3 t- ~! y N/ Q) Q( g1 p
end;
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# O' V$ T3 k5 |7 q1 y$ s3 M. t2循环语句
$ f6 }) T" n% I: B4 L( K1 t (1) from <statement sequence1>; @; c6 J" l1 q, p
until <condition> loop) T. r& K7 l, f. o) T/ ~. Z
<statement sequence2>;
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(2) while <condition> loop9 m* V/ I+ h! ?/ N% k) e9 L
<statement sequence1>;0 k8 X4 j- t f8 `
end;
3 @# B4 v. x* d* I$ k. g (3) repeat
( ?1 X- s- K6 F. @; ]! k <statement sequence1>; ?6 N% y d$ \: c3 q, w
until <condition>;
1 e2 c+ M$ v* Y E (4) for <condition> to <condition> loop& O0 S* I, W5 ?4 `* d
<statement sequence1>;" n R$ g5 r, u( M: k
next;3 o: G7 x+ S! m# y+ X- n9 H" `
3中断语句2 u4 X4 Y: h" k
waituntil <condition> prio <integer expression>;
3 ~4 P( F, s+ v/ v3 B" @: O$ q6 H8 P. z# g% I2 J
6 Y A& r/ w# _9 V& \( K以上为常用的函数!
' f' E3 i* j2 R5 K" S6 r还有很多,如有需要我把资料发到你邮箱里
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