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发表于 2012-11-13 08:48:12
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1判断语句9 B5 x1 k9 i* W6 P4 F0 J; W
if <condition> then* N9 ~. b6 B1 D0 Z4 [$ h! c0 i
<statement sequence1>;6 b! ]$ h+ i: b7 ^" a
elseif <condition> then+ @1 d+ g0 i1 n" B
<statement sequence2>;7 A+ C, _7 K9 p+ a% T6 J3 u) q
else 3 ~# {& a! m, P. k3 m
<statement sequence3>;& a7 ]5 v( U4 ~# c- A6 [
end;, }1 w3 E0 D0 V& Q0 K( C% n* V0 d
如果分支比较多，用：' y8 Y/ R5 \1 ?. f' T
inspect <expression>
" H C9 x; k. U- E) p when <constant_list> then
7 O( ~4 _( Q' ]; f <statement sequence1>;
\7 Z! Y, B: Z6 _ when <constant_list> then& ~- E' `' M6 H$ w! \) h
<statement sequence2>;6 ^" g: ?+ K" P; P2 l3 G. `; ?
...
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<statement sequence3>;3 z: b% z8 I6 C& \
end;
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. i- }! p7 }4 l2循环语句
$ Z3 v: S' l) y2 j2 _ (1) from <statement sequence1>, _- r2 {2 M9 h; t
until <condition> loop
& ?! L! Z* G" _ <statement sequence2>;
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(2) while <condition> loop) m& ^' W& C' i3 f7 [8 x
<statement sequence1>;& p) b7 p( y; y
end;
8 [& u9 {$ s" t6 _8 c m; E4 J* o1 r (3) repeat ( L7 s, f; Z" U) V7 F7 A! g( s
<statement sequence1>;
$ Q% f8 Q# X& m( ]5 V until <condition>;
. G# W W) R( ^ V4 M5 _ (4) for <condition> to <condition> loop" ]! J4 t( v" h$ h# I) p, `
<statement sequence1>;/ d. c6 X v0 N0 c7 C
next;
" \$ x* E7 x2 O" }3中断语句; Z& A. j7 c4 Y* N" e$ J q
waituntil <condition> prio <integer expression>;# x3 e3 s' p- L& W; D
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* ^4 g/ u9 z8 g$ R# {以上为常用的函数！
! [, ?+ p) C* P2 Z还有很多，如有需要我把资料发到你邮箱里 " |& v) F6 p" o. h) v2 L1 o
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