|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句+ z. Z( B* d/ s( C/ p
if <condition> then
# ]4 T* E5 O2 t4 C! w5 l) w <statement sequence1>; j' }+ E# X- ^" M# p
elseif <condition> then1 O3 j9 c# }7 q1 U
<statement sequence2>;2 V# q4 W9 p/ Y: J; K, V: g! B
else # w: f+ K: k- b- a# G* c
<statement sequence3>;
, Q- o( x5 |9 N& L end;( k) y/ L& B4 F' c/ x
如果分支比较多，用：
3 t! N/ _, x6 A/ ?- z8 G( o inspect <expression>& f8 A' `1 C8 Z j0 s) f
when <constant_list> then
+ s' J3 t8 F3 C' b/ J& @0 c9 k <statement sequence1>;
7 e$ \* e6 @ O+ W; v when <constant_list> then
, |# s, L' Q- b& ] <statement sequence2>;
$ x) ^/ m- G) ]- w ...% [4 n5 Q! _7 R0 G
else6 m( ?% r! w5 l1 M, W
<statement sequence3>;
' E, @4 j1 P1 B9 Mend;
# J) {$ e A1 v2 q" s5 c
9 J) ]# N% {) @- A2循环语句
$ g+ e- n: F+ y3 g (1) from <statement sequence1>7 y+ b% w* p/ z
until <condition> loop8 z' ]; y) N4 |: n- B
<statement sequence2>;+ B# z7 [$ ]4 U- G
end;" f4 x# o) f5 X$ k
(2) while <condition> loop
% Z6 v# r+ n( `2 c9 x <statement sequence1>;4 N4 d _9 w% G4 X5 u4 c2 F' t
end;
3 X; r' v% W e3 k; y (3) repeat 2 e; N6 W# [5 v+ u
<statement sequence1>;
2 h) D; U9 a: ?' F: H- D7 ~ until <condition>;/ B# O1 q z+ w3 w8 }9 L$ m, B
(4) for <condition> to <condition> loop
- g" p4 K" ^9 B4 F4 k9 A; F" r <statement sequence1>;$ x: f0 N4 d: z% g
next;' E( L6 M' W$ z
3中断语句
t# h( m$ U4 a2 i: W+ ] waituntil <condition> prio <integer expression>;0 v: N6 b; | ^
, ~5 O: g& B- Q0 f
1 w+ Z) x7 q8 {( u/ C以上为常用的函数！
3 w2 ^. Y: f" w$ K1 j2 o* H还有很多，如有需要我把资料发到你邮箱里 8 i' f( ~ g8 d; J3 n4 c
% X a5 T8 C" `7 z
" L. t- u" {- w% f9 G4 X6 S B& v, O# S# o2 ^
# M8 M' f" [8 `5 m$ g; `2 [6 L2 o: S& g( v/ Q* H
0 S) |. T! p3 x" P2 ~1 [7 X
( }& }( X3 }: b# w- J. M# k/ o
7 l4 j8 q* ^9 B7 P3 M d. X
4 ` w, \. s% f
1 X# L$ x* X! T$ m |
|
[复制链接]
