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发表于 2012-11-13 08:48:12
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1判断语句! ^5 G% q4 d. N$ B0 u
if <condition> then
6 z0 `3 w5 }* N$ U0 ]" g <statement sequence1>;
, D. c+ D4 E$ {. m$ q* T' D4 W: e( a elseif <condition> then8 f: J0 P: U1 y3 S. P. a# _: y E! q
<statement sequence2>;
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- {& \! z- s* j* W3 x3 G <statement sequence3>;) L, [1 a+ a2 F5 z, q
end;% e) G" c& U8 r
如果分支比较多，用：
& i" u6 z0 _4 S3 y. W$ ?# q inspect <expression>
, ~8 m+ k, V/ Z0 M: _ when <constant_list> then. E5 N3 z- n& O/ w
<statement sequence1>;
7 Q5 H8 a- @# v when <constant_list> then" f/ a& }* Y( b$ N! q( u
<statement sequence2>;
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else
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end;
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# u. f# X! i+ M5 E7 [+ d2循环语句
2 K- Q1 w$ |5 Y2 `# f5 p- y+ q; ? (1) from <statement sequence1>7 v M6 W) K" e; A6 g0 u5 o1 M( y
until <condition> loop
. F+ W( R/ q; G! {8 L! G6 m/ }0 Z <statement sequence2>;
" S6 J* _( u8 x end;2 o" U" i* \( n( a9 x
(2) while <condition> loop1 V1 y" Q3 d; s9 N5 X* D
<statement sequence1>;! n, r8 k) U4 \' q+ G' j
end;7 h8 A6 [* p* S2 b, n# B' W r
(3) repeat
! O& x2 w V9 v# C <statement sequence1>;
2 c# `& m9 H, m, ? until <condition>;
\- G3 a% Y" I+ Y' Z& B& O' z (4) for <condition> to <condition> loop/ }) n1 b, E" H2 |- w
<statement sequence1>;4 ~" m& u+ A4 s
next;
/ ^. C! w6 P& d- U3 C& {3中断语句- Z$ [+ [% l* G4 q* }+ b* r
waituntil <condition> prio <integer expression>;
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0 L& U# Y' L; `* S8 s/ z! w以上为常用的函数！
. L2 w, B: {8 @还有很多，如有需要我把资料发到你邮箱里 8 S' v, U7 I3 c0 ^' `1 p" t
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