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发表于 2012-11-13 08:48:12
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1判断语句) e, D& S; t3 D2 j
if <condition> then2 _9 M1 p6 i1 t9 |0 k
<statement sequence1>;6 z- k. N% x- F: a
elseif <condition> then+ V+ E0 U- \6 H& }7 x
<statement sequence2>;
' ]- h+ A5 |5 Z+ L. \ else
, n+ T0 c* j$ C% G5 R <statement sequence3>;
# w6 E3 k2 e4 ?7 {$ l8 P2 }! ~ end;" L" K* u$ {) p, F/ t
如果分支比较多，用：
% B' a [9 D8 F1 w! M( S1 ^6 |+ q inspect <expression>4 s$ ?3 J7 @ L- t9 T% A* M
when <constant_list> then8 ^7 T$ F8 ]3 P7 ^/ Q* M# H
<statement sequence1>;- f7 F7 L& E- O5 W% ?" ~% S
when <constant_list> then
3 d8 y; M+ f5 p2 e+ V <statement sequence2>;
3 i8 G: c2 b- z# g: ] ...
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<statement sequence3>;
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2循环语句- \9 {& o- t1 s0 \0 P3 l, O
(1) from <statement sequence1>3 I, w8 O k/ ` m( v/ l& j
until <condition> loop
2 W1 W- \6 G' D$ W <statement sequence2>;
% X1 ^5 y( Z& Q1 @! }- {7 D end;
/ Q- S$ X+ _# n* P$ O (2) while <condition> loop
V% [- g$ d* @* Q& |+ m+ r' e2 C! K <statement sequence1>;6 _5 t, d0 H; z# f0 @: B z! ]
end;& P. s+ [3 [' t7 B6 w
(3) repeat
' u0 A0 A/ N# d- @6 m5 n- s) ~ <statement sequence1>;
. ~2 f* r% F7 B3 s until <condition>;
: r1 G v, T/ |6 _, q d (4) for <condition> to <condition> loop! _# s) h; @/ ?& g' b/ S0 O
<statement sequence1>; K' l) b) c' `! Y/ }' w0 K
next;
: S1 F: I& B1 v. \3中断语句1 h3 y/ M5 `6 f3 G( C- s
waituntil <condition> prio <integer expression>;* c) }1 |1 X3 x& f5 q$ x: G
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以上为常用的函数！: {' C+ i q( F e! o" e( o! z
还有很多，如有需要我把资料发到你邮箱里
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