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发表于 2012-11-13 08:48:12
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1判断语句4 N( _& B I' V) u% \
if <condition> then
+ J" X2 T0 H/ ` <statement sequence1>;4 l5 s1 ~4 C/ D/ w4 C
elseif <condition> then \% {1 [. L4 k" ^ R
<statement sequence2>;4 r; f+ r; |& x) y
else 0 {. }/ ?$ D3 F' F! z
<statement sequence3>;8 o. K% W8 ~/ @0 i
end;' X6 k& u' E, r: U L0 X& o
如果分支比较多，用：
5 \! Q: t. @+ \( B, R; s inspect <expression>( _9 h4 Y. M& T1 t$ b7 W" }
when <constant_list> then
% ]0 P% r h$ u2 \0 _+ P4 h <statement sequence1>;
/ q" l+ J+ N1 S when <constant_list> then
3 Z' z8 c# Q) P' w& n7 B3 M <statement sequence2>;
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else) M: ]) W' ^6 I( m b! K
<statement sequence3>;5 {2 P' A5 \) g+ j0 x4 c( [
end;
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2循环语句
1 L" @2 m9 V' Z) C% q& h9 ]* u (1) from <statement sequence1>( q6 t: h- `" s" C, _2 J: t$ I
until <condition> loop& P5 |! H" e8 u! Y. B
<statement sequence2>; p2 W) e, t. C* u" P
end;$ h0 a4 K+ Y- o, h( D
(2) while <condition> loop& f, z& b1 R' z
<statement sequence1>;
8 O- N* c/ f/ ]- L B end;- a. \' s2 z$ k8 A4 y. C" ~
(3) repeat
. F: l( `* E/ i5 a" }" k <statement sequence1>;8 V. y, Y: A7 t M+ g
until <condition>;
) x. v5 @: h1 [' S0 y& s& B2 X (4) for <condition> to <condition> loop
- l& U+ R$ m/ r+ _- ^ <statement sequence1>;- Z- ~! Y, N- }- y4 y7 F2 E
next;, p" M) Q) K2 F x; p" R5 i
3中断语句$ T! F4 M& g- I8 j* T2 ?3 K& U
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
% ^& j- I- k; c7 q- k还有很多，如有需要我把资料发到你邮箱里 " P3 O& ?) ]2 s
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