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发表于 2012-11-13 08:48:12
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1判断语句
$ B9 h c2 o. `! W" V4 V1 l if <condition> then4 B3 ^( [- q/ P6 p& r
<statement sequence1>;9 ^/ W" U' N$ b& Q
elseif <condition> then
3 \( G8 C. M# P* x <statement sequence2>;
i( O6 E0 c: j else 6 M- t; m t1 y& {( X2 w
<statement sequence3>;
4 o' ?( L9 d; c0 R end;
' v! J8 d ~4 p% `' @/ G: s如果分支比较多，用：
3 a/ \1 T' Z3 U# H$ i2 m8 f0 ^. a" i* [ inspect <expression>
1 f5 I3 S/ x7 P+ q when <constant_list> then
0 V3 W( |5 R7 z0 w) C/ k <statement sequence1>;0 f; n) f& ]% F
when <constant_list> then
3 \: r1 ~4 h6 {/ _" U <statement sequence2>;
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else: l. ~2 x* C; n t: h: w2 F' p
<statement sequence3>;
3 T s- `( l0 ~9 Iend;
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; m9 q/ N S" v" l8 ?2循环语句
# ~& z# p% V; u: S* `* @6 |" B0 I (1) from <statement sequence1>
, _& Q- o0 ?) }1 x until <condition> loop
2 O2 ]- c# M s( y8 q) x: M1 o <statement sequence2>;
( }1 C/ C6 K' g+ B! y- P end;
* |. v( s. X' y) w. e (2) while <condition> loop4 d8 H$ r) ]3 U( v8 |
<statement sequence1>; C# ~# A- E9 a) o. j& o( D# c
end;
$ S& t/ ~" D3 m" } (3) repeat % g& ]7 T S& C6 h
<statement sequence1>;
4 H0 d# a9 p; g4 v r1 b+ a. w. R: M( _/ \ until <condition>;
8 Z& L0 S2 I- T9 S8 W! r (4) for <condition> to <condition> loop
2 E. l$ G$ @: n- M* A. y7 M <statement sequence1>;6 Z$ Q6 R k( k5 K& E
next;( o. L+ K% w/ O8 r3 ?
3中断语句
" u6 v+ A. f& R: T0 ^, W: I. [5 ^ waituntil <condition> prio <integer expression>;# x- E g% M7 H" H
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$ [) E5 s- o# l% x
以上为常用的函数！3 R, \8 y, w; B
还有很多，如有需要我把资料发到你邮箱里
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