|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句8 v7 g8 G* g2 p/ R- l9 b, [
if <condition> then
6 l: v8 O* |% N( A/ o( q <statement sequence1>;. i H, {9 q- Y& D" M
elseif <condition> then
' s$ h- b1 j* V0 b8 g <statement sequence2>;
- b& z8 ?! G$ r/ n else 4 ?" ~0 h9 A% \: y
<statement sequence3>;3 w7 G" [" M t7 C
end;! \ u5 L$ n& d. {
如果分支比较多,用:. ^% y' `6 N$ }, q$ J: O
inspect <expression>
4 {9 o( `) ], L5 J) m when <constant_list> then, n# u8 T8 L+ R/ S8 T5 n7 N
<statement sequence1>;
3 Y* R+ u6 @) H( D7 g0 V" w7 [% b. G when <constant_list> then& M7 p* x# l I0 f8 c7 O- q
<statement sequence2>;9 \/ b. Q- I( }3 ~3 i( G& _
...0 m# d% F( Q6 F3 P$ x, H
else
. @2 U: Z$ s5 ^/ C" L3 d' x. ?0 Q <statement sequence3>;4 a4 b* H: v% w7 @
end;
5 ]3 K, _9 K9 C) }: `7 R/ h {7 \/ ~( Q2 I
2循环语句+ e/ t1 b. f& g# s
(1) from <statement sequence1>; ^' V) f! w6 `2 f5 H. U5 ^
until <condition> loop' e/ M* j/ x6 f3 ~) f5 w. }
<statement sequence2>;! K- A" C2 A2 K2 c
end;0 \6 F' j+ y1 z! e2 D& Q$ n( v
(2) while <condition> loop
. G. J/ Q+ H: Y1 ^0 u6 q <statement sequence1>;
) A8 _0 u7 N9 {: }; { end;: e# H a7 A7 w6 W
(3) repeat
% y0 Z, T3 |: a! {- p <statement sequence1>;# M2 I* `0 w. Y& T. q9 T
until <condition>;
4 h4 ?) [7 _9 }8 @ (4) for <condition> to <condition> loop/ ]( ?; \7 H* P5 W" ]/ _
<statement sequence1>;
1 u/ _4 p1 ~3 p: Q d0 G next;
5 R- p9 Z% N' [) x6 V8 g4 f3中断语句
5 \1 ?# W8 w9 H: s% z6 C% j waituntil <condition> prio <integer expression>;
W5 s' {4 ]' ?4 i, n
5 `) O: I/ Y# N' V" r# X% V3 g" f7 I# o; y
以上为常用的函数!5 Q' h+ T8 I6 J8 E
还有很多,如有需要我把资料发到你邮箱里 0 e. q$ l! p+ s; ?' \
3 o( m4 N: r. N! m3 g" [. F4 N
( @( h& I% [& D$ r
% B. S# i3 E9 @4 x' e $ i5 W2 c7 E6 X B
& n4 [6 U8 b7 q8 |! T7 `7 f% L0 H% K- a: ^# f& x8 f
' g J: y6 T+ b0 T- x. D+ m1 }) b. g
. Z9 L! J' f3 {( s
; x* L; @6 r3 r8 o+ G
J3 M Z2 C3 y, a8 K( E! I |
|