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发表于 2012-11-13 08:48:12
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1判断语句. q7 l" K5 \8 ?9 s6 N+ _
if <condition> then
/ a3 t* U9 l3 c* }9 } <statement sequence1>;* `; I( V$ y$ v. m" k
elseif <condition> then
4 `$ M. [& [- M b <statement sequence2>;
: d' L( i, l( @ else
; B+ d; }2 J j& J <statement sequence3>;! Q* v9 l& T0 s; P8 Y' X/ E3 F
end;& [" b" i4 [) e. k6 v; G8 k
如果分支比较多,用:1 C0 N3 A2 Y! Z+ | r# V+ j
inspect <expression>
1 V& ]; v! _. H2 B) ? when <constant_list> then, b. F$ D* o/ T3 e
<statement sequence1>;7 p# k; i- o: E6 B
when <constant_list> then
- ~1 k/ A7 x/ L4 M& A& v <statement sequence2>;& W* d( P# c+ W: }
...
; M5 d& @% i! @# H! c else
; m3 i; m: L) ` K <statement sequence3>;2 w5 L% I" M8 `5 o: k
end;
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3 k& M- G( W5 F7 T) [4 c }8 A2循环语句) m) c& z5 V$ g/ X( i- G
(1) from <statement sequence1>1 J i4 W! x/ r; j6 j. T! O" U
until <condition> loop5 R6 ~# u j1 {
<statement sequence2>;# j; d& m! m' ^/ d n0 Z$ a
end;& J4 f3 O9 t* R- o' S* v
(2) while <condition> loop! I" F( D% {! O6 }3 j
<statement sequence1>;
% g8 y* N4 D$ s; W end;
& ^, B" `1 C& k: ]1 y: S8 d (3) repeat . |( Q5 M% S, k, Q
<statement sequence1>;
4 S" v* p* H0 Q0 K7 C8 c5 J- Q. j4 _ until <condition>;# P: P, C7 _* T3 h) Z
(4) for <condition> to <condition> loop
) k( j5 T8 d. o' M' A+ r" M% ?# M3 C <statement sequence1>;
0 [% C$ `5 E# ] Y. W$ A' ?9 R next;
7 n4 l, _+ A0 S7 b- s/ T/ j( ~3中断语句3 c# D) [% e2 q2 M4 X9 l
waituntil <condition> prio <integer expression>;
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$ r6 s- ?" E$ ^# I) f& z/ g
6 `3 ] A+ s) h7 `0 T以上为常用的函数!% t9 r5 V7 r0 A4 l
还有很多,如有需要我把资料发到你邮箱里 ' f3 ~. y9 d; w4 c
X9 z# Y" \5 ~$ H- ?( a
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- v! N. J) S# u( U; i% i$ F
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