|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句4 I2 [/ ?# X8 i6 r1 L! m% \
if <condition> then
# J3 t2 J, ~ d8 y+ Y# ]8 | <statement sequence1>;- v2 W4 |# ^$ _& H5 m: |
elseif <condition> then) V: d- Y6 l7 w2 v7 o* @
<statement sequence2>;
6 e. \3 h) X! j' h+ ^ else
1 }0 @1 T3 Q0 A8 R y# f <statement sequence3>;3 h& O2 E% p- F; ]; I+ S' R
end;
4 h( [; C# J& k r7 W如果分支比较多,用:5 N8 |3 j7 s6 m5 m. @" F: }
inspect <expression>3 a3 } b& x- x9 d
when <constant_list> then
. V; ? F: _( ^) o <statement sequence1>;' j- J, n8 q( I; \
when <constant_list> then0 Q" x( |& v* o. c# A' q N
<statement sequence2>;
' x; s- X0 A- t6 Z3 {) i& v ...
. o. m! I d, W$ e' }" D# N else% u: y7 o; x) t" D% o1 p
<statement sequence3>;0 m7 f1 q4 `( m' t3 e- V
end;
5 y* [' G) _0 R6 E+ ]6 h
1 N8 x* A' J" ^) d2循环语句6 n0 N1 Q" a6 w. m0 e2 y
(1) from <statement sequence1>
* r! R# e" d" ?3 u% l- t until <condition> loop
' Q" e2 z ]! Y& Y1 g! o/ ` <statement sequence2>;& H H* S2 B5 f+ I0 o/ W
end;
; c; W: {+ L3 s# g$ i; ]4 B% u1 E6 Z (2) while <condition> loop5 q q5 u* u; v
<statement sequence1>;
: @" G2 Q4 U+ P% }+ T end;6 S. L/ w) z" d1 N$ ~- |
(3) repeat 3 E, C/ I# y1 K0 e* [# }: C
<statement sequence1>;7 U- ^9 E0 H" P5 z
until <condition>;
: l8 Y0 E0 `& y (4) for <condition> to <condition> loop X4 @3 e- f' v' P/ s$ j; ?1 ^
<statement sequence1>; J1 H; i" }; `0 C# B
next;
4 V6 K7 j) W R; V' @3中断语句
6 N m( ?9 ]/ \4 ? H5 N waituntil <condition> prio <integer expression>;" S+ R" R: A' `# q9 w
$ f: a1 f* l" r: p! q
9 T! s, ^' p* z4 j0 \! r. T7 M以上为常用的函数!
' P) M1 F/ `; n# Y% b' E还有很多,如有需要我把资料发到你邮箱里
: |9 \7 }$ k, `$ F5 x6 x* c2 u
" {9 m0 q& D1 ]* U, h. j g( e
7 k- r6 b! n3 v; I& l7 _& c3 \0 a J+ Q+ d
; {; @5 T, w$ w D* ^: x# z e: p7 f+ s. t
, {7 @$ V$ E6 e* V7 s4 G N8 c: V5 L6 N& V; x5 _/ ^
9 ?% U% e3 ~! s0 p
( n7 k9 w5 L' z4 q! s 4 L" R% z3 q+ r$ x4 q
|
|