|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
" H& N0 n! Z, p! t- E if <condition> then
; C$ G1 t& D8 c' x, j- j) O <statement sequence1>;
R& C: u6 _5 w" k elseif <condition> then) H" n" ~5 ?! m- g) h( ~
<statement sequence2>; a8 o" b: d6 W) Z0 C/ C2 A& e
else ) g7 {" i8 m- h# ?/ c
<statement sequence3>;
8 W3 A; {9 n, J! v end;4 R# Y2 q* ~! A' r6 I
如果分支比较多，用：
% a# G/ }- j' i5 Y+ g0 h inspect <expression>
% w" R+ M1 l2 i h. n# _ when <constant_list> then
( i9 W$ m8 V9 h+ _! h4 h <statement sequence1>;4 D. Z+ W) s5 Q- v/ B
when <constant_list> then
( n- V1 a( r l! m9 z7 `, l <statement sequence2>;+ Z8 y8 k, `3 K
...
" Q! |9 S+ A1 D! ` else
+ v: O: ]. S4 L2 W! N, B/ [ <statement sequence3>;
0 }" r9 R7 P) I. D1 gend;
5 S; l- Y8 e$ O$ e. U) S
" [- R8 f; a5 G. f" v! Z2循环语句
$ C) m- V) G8 D5 G7 I/ E/ ]: z" Y (1) from <statement sequence1>- \2 I7 i" @9 J' ^
until <condition> loop. _7 }7 s v* G( z; ^8 q n
<statement sequence2>;
; k5 H9 j4 ~' c+ r8 D end;$ \2 a4 h4 \, f$ {, S
(2) while <condition> loop
1 r6 p% ?9 F( a) C- ^ <statement sequence1>;( S- g$ ~2 \" e1 m( i
end;
( h9 z e3 W3 {$ |! C6 _; P (3) repeat $ ~0 a; w: h' O5 @7 l% U# }3 ]
<statement sequence1>;
; s7 U4 }; l% b until <condition>;4 j7 Y2 O; W: X$ j N3 z- j, G' M
(4) for <condition> to <condition> loop
6 T b) z' @) Y# R! F. d& j/ H <statement sequence1>;" F6 y8 Q; w3 G/ U
next;
) A* l9 a! h( k7 J, M0 X/ s( Y4 Z3中断语句4 n' k h+ u- R3 t5 ^
waituntil <condition> prio <integer expression>;) @; p, S# v8 z" f3 l
) b3 q) p( b: d E8 F
+ x3 @3 T: J5 o1 Q4 R7 S; \以上为常用的函数！
2 i1 B$ _0 ]+ s! {7 G( r; C还有很多，如有需要我把资料发到你邮箱里 ! P. t5 R8 F1 V$ S( `& K
5 p( T. x* L" D. X5 m# W
4 O( K* A: E2 H& }5 l( e4 Z6 c- U
% e2 y! |1 I5 \) S1 V. `4 O% U: ~. |: ]
7 b1 m0 s: v1 S Z" p2 Z
" j( K K1 Z; B3 x1 G7 O @
: z, }1 ]& E; S# f' r7 X- I6 E: K- T3 d `0 P$ i6 r- }
/ l1 u+ v* T0 c0 _
* y, |& O$ \& z% V8 S% l
7 `8 e' h' X8 F! M7 v
|
|
[复制链接]
