|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句" q+ ~: ]0 F- e. j& I
if <condition> then2 _3 P1 C4 X+ o' Y% g/ J
<statement sequence1>;
3 X" P( J8 l4 a2 q4 S% \) D2 _ elseif <condition> then
' ]; r) j: h9 X) i% ?: | <statement sequence2>;, v { X8 `/ e( F& w
else + c; ]. o9 L. \( e
<statement sequence3>;
- B- e. S( h6 H9 J/ n# c9 o7 C; G end;/ o# D) T! e; D* b. }9 N M
如果分支比较多,用:: z# |( b( y2 x
inspect <expression>
* v( k6 _+ y/ ^. T when <constant_list> then
1 M/ |+ W6 Z# q2 o3 v4 H <statement sequence1>;# J6 r; B: s! u( h
when <constant_list> then( n- S( p( @$ `9 u! h
<statement sequence2>;
# m* o' ?4 r0 K ...# S2 Z @; Z5 \) n3 q
else2 k2 |6 T; K/ R+ |7 g
<statement sequence3>;: n- Z8 U8 N1 D
end;
; n, `% [9 E4 W! ]( i8 I! Z1 x
4 w8 d% n4 |+ E9 b- h2循环语句! `9 N6 H) ^4 P U' b
(1) from <statement sequence1>& Y" C4 |- q; \, H7 y Q+ Z' o& K
until <condition> loop( ?' A9 U! t9 C6 ~
<statement sequence2>;
$ b+ R1 K. l: Q% }! p# f* i end;! ^2 }3 _% s$ Y' g
(2) while <condition> loop7 a" p5 I3 g1 U- w
<statement sequence1>;
5 N( a% [# y, x. i end;
1 O$ q" h4 X4 Y (3) repeat
; v/ [) O: i$ l9 M$ |9 q9 z2 U <statement sequence1>;
2 ]5 P0 |% B4 g% @/ m2 j' ^ until <condition>;
; }' A) P) |& k% j( r9 ~ (4) for <condition> to <condition> loop+ l! x" a! ~/ I p8 s; g
<statement sequence1>;
6 l7 E9 ?* _- t; x4 }5 x next;
3 Z6 O' ]6 w9 h, h% n0 Z3中断语句
/ y1 ]( J9 p7 @) F- m waituntil <condition> prio <integer expression>;2 B1 ^; C5 O2 ?! p
7 }4 N9 L6 K- o7 f I- \- Y0 h- ]) s M& S
以上为常用的函数! p6 j8 ?7 x9 f6 {( u% P5 G
还有很多,如有需要我把资料发到你邮箱里
6 j/ K, m# a' m9 X- ~. B& A$ Y/ q; y% U6 M% x, f. t( B
9 z: P7 @2 N( z) ?$ w
- ]/ _, R, m! c & [# n6 R$ N0 [1 X
& y8 d' ]3 q" q" n* B; g+ o4 U2 h7 ]4 f
) N0 \0 {6 {# w2 h( S, x3 B# s' t% F5 Y& [1 ~8 W% C% U6 y
9 w) [8 w+ W" f& {9 ]! Q- B, Z1 ^ - F. V3 e' I- C+ y( H! r" W% w7 r% G
|
|