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发表于 2012-11-13 08:48:12
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1判断语句
6 ~8 Z9 W8 f4 P/ Q4 K+ i. n if <condition> then- C; P' {0 q8 C6 K% q1 o5 a# e
<statement sequence1>;$ K% g' y; B) z! U4 [) v
elseif <condition> then
- X: ]7 F$ `" }' X9 E7 a <statement sequence2>;* B3 u& N1 j5 o( e2 O p
else
. F6 V6 R! v: T. \) x' J$ o6 y <statement sequence3>;1 h2 H- p' o5 s( V
end; {; H: s$ |) T0 {. R
如果分支比较多,用:
* Z ?/ f, T+ n$ g! ? inspect <expression>
* M/ G1 S8 ? J$ E. ^8 Z7 Q; Y when <constant_list> then' i2 A$ `" M' J; f, o6 { p
<statement sequence1>;
9 Z8 W& V, n; D% S7 | when <constant_list> then
0 o; t+ s* Z! ` <statement sequence2>;
5 h/ |$ m& t( b% y$ C5 w ...
+ g, t* @- U! A! n else- ~' j" s- q+ ?
<statement sequence3>;; C# U) ?& q' w& A
end;
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2循环语句5 B+ K! I( g: J1 A* w/ t2 U1 ?, ~" p; f
(1) from <statement sequence1>! Y) [6 o% v" G: y- j J
until <condition> loop6 K: |5 z1 N# S9 H/ R5 [/ E& t
<statement sequence2>;
4 V7 d, G8 S% P; W. X$ U end;2 r0 U) d0 \4 t, \
(2) while <condition> loop
! X, u1 U1 d+ T0 ?, I# ?2 @( _ <statement sequence1>;% {7 p: a$ r' _
end;
7 `( v8 q+ g t; @4 h: \) H (3) repeat 5 u- ^: G2 `( i& R
<statement sequence1>;
5 `* \3 Q3 N% e+ c/ M; F until <condition>;
9 y$ W- g1 r- z' G6 i4 R( Q( d (4) for <condition> to <condition> loop
+ A6 H$ O, M9 s! F <statement sequence1>;4 X- B$ ]' G9 B& @' T9 d
next;* K& p9 Q1 X1 _& R& \
3中断语句/ Z: V! x0 Q- @" `5 g& I! Y
waituntil <condition> prio <integer expression>;
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以上为常用的函数!
}0 S- R) S4 @- i+ J' N还有很多,如有需要我把资料发到你邮箱里 * V8 l; f& j. Q5 r0 y
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