|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句# R" x& F6 a2 h0 l/ r+ h
if <condition> then$ g2 h P7 C* `- U7 |. c' ^: W
<statement sequence1>;
! p; a) j$ F# |: B elseif <condition> then: b3 ~2 l8 Z# t( T& E, t
<statement sequence2>;
$ e1 }" d) i2 T! b9 N' q8 Q+ ` else
+ }+ ~4 m) ?1 T) t1 _ <statement sequence3>;( b8 R1 ]! T5 J- f
end;2 @( c& b6 L X q
如果分支比较多，用：/ ?; k' }3 s, u/ N& R
inspect <expression>6 q, j- O% h" ?; _; S# H1 Q
when <constant_list> then
1 g# y/ [7 L) }# q' w$ P* [6 i <statement sequence1>; O4 `# s U+ i, c6 W
when <constant_list> then. d# W, U9 y& ]' p* G: {5 q
<statement sequence2>;
N+ Z- ]$ F2 J! \$ M* F ...
( T- a, X% ?; ]( N/ X6 M# ^ else
+ g! x# ^4 _& G) ~/ J h& d; _9 Z <statement sequence3>;
5 r% _; K) C$ v$ s+ mend;
. M$ q/ e% |" \- N; j8 }- e+ M- a1 d
2循环语句2 u* s2 m# v$ F/ h$ u8 J7 ?2 A
(1) from <statement sequence1>8 p' i# C' p" x
until <condition> loop, Y. `6 ~% c4 _* W3 }, L
<statement sequence2>;6 F/ B/ A! Z3 q$ H1 A
end;
& `/ W; S/ @4 ~% P* ?5 E( |- W (2) while <condition> loop9 S/ n2 [1 `2 X0 ?6 i# N
<statement sequence1>;
) J4 V2 e" ?# q; Z8 c+ ~ end;
( `5 d( h2 P% W- q (3) repeat ! Q: d( P& B Y5 O% C5 l. Q. ~
<statement sequence1>;
' r' }8 ~" S) \8 {0 b5 r7 E until <condition>;7 r5 v: j( O0 [ h
(4) for <condition> to <condition> loop
/ Z( a% ~$ [ o) z <statement sequence1>;
5 a9 \& _1 P4 j2 r next;1 h0 \2 p/ z2 i
3中断语句( F/ k1 j$ M/ \! k# {5 m& s( H
waituntil <condition> prio <integer expression>;
% M4 g' ?" |4 ?: _2 v) `
) q; v5 d& v! C2 X8 B8 G3 t* S8 _7 w2 I' g! u8 G/ ~
以上为常用的函数！8 b' o6 @; L5 @
还有很多，如有需要我把资料发到你邮箱里 1 G" l( {7 l3 t( h8 D
$ ?' i7 n) d+ y7 m P2 C1 N6 l" \4 S; S' w w
! Z9 u9 p8 j. W# J) E+ a
5 x9 S: ^5 O% u7 f
4 H( K( i6 v8 A( _$ e4 Z
+ |5 c- J) E( F7 ]$ V% G- P
9 X/ I/ z: T% G9 [3 Z
7 z; J `; e) u7 ~" d) c) j( C5 _$ ]9 p- p; _1 L- v2 s" C! F
0 x( s% H0 e9 U+ |; f x; e) z |
|
[复制链接]
