|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
7 q3 P9 _/ w8 e/ y* r" E if <condition> then
7 U. ^' Q7 M, C* t, s+ H0 Y <statement sequence1>;
" w, o5 U) n' G7 q+ g7 o1 T elseif <condition> then7 _- C. c$ E# w$ _8 J" K9 \
<statement sequence2>;
; {( x* O( I+ F else
& ^4 E0 `( x) B& P# r& { <statement sequence3>;# q* U6 i# C7 }, x' ^. @
end;5 O! |) I0 D1 a d2 S8 Y
如果分支比较多，用：, z' I" n! @% w+ A
inspect <expression>% V9 q& G1 p3 ^/ q- h0 e) m: y& i
when <constant_list> then1 f+ k$ q& I. {" J; u
<statement sequence1>;- ?3 ~# y7 N" m
when <constant_list> then
+ U. O3 ^" p% n7 {7 j) ^+ ^! \ <statement sequence2>;1 n# Z! C+ `6 {- P3 y: o3 ]
...$ D6 ~. V9 T8 ]& q: Q
else" N& ^. H. Q! } R; u
<statement sequence3>;# B- }& ]: ^6 Q9 e3 w) `
end;' g5 c" J7 z$ W' P
. u7 g8 \; T# K F6 v. d, u; h
2循环语句
7 d2 M% x+ T. S3 T o) ] (1) from <statement sequence1>
1 I5 k3 Y1 v% q; D2 [* B( A; b until <condition> loop0 [8 Q' x- M& V+ _5 |$ p
<statement sequence2>;7 _! z8 W* l3 J. K( r: Y* v
end;# Y9 a* v0 S6 b6 y2 s
(2) while <condition> loop' z7 o7 T0 I7 m) g5 B
<statement sequence1>;
8 p( G/ V; z% d# u5 x7 W end;
. n; u) @8 @; z; |" U6 D F (3) repeat , q$ M$ V+ K- [9 P* E
<statement sequence1>;
& y" X' A1 H- p+ ~) ?$ x4 W until <condition>;
# C8 _: s" s3 g# }) P4 o! U0 ~. d (4) for <condition> to <condition> loop0 u* Y! g ~. C' `( g' @
<statement sequence1>;0 \) |6 ^9 U; u+ V. k; S8 I
next;( J( l: S1 Y, x* V8 `8 W" ]
3中断语句+ l; z9 J/ A* Y
waituntil <condition> prio <integer expression>;
6 b8 q6 ^& l5 D
# d4 q4 V/ D+ B. q: ^* B
2 [" g% ?& @9 c. _$ T+ Z0 L以上为常用的函数！& l3 [% `4 c; N0 g& z
还有很多，如有需要我把资料发到你邮箱里
, O7 ^+ ]) m6 ?% t( d ]1 S s6 ], X
# u* d" K# V) W+ ~5 ~
, I1 Z4 v5 H0 G& p; J5 O+ a- V6 L
$ O2 ? N S$ l, l% e( _- Y" s3 ~/ @4 g+ t! {8 ]
2 }) j2 i; e+ H; M3 z7 T r
( m* P; t4 ?) b x) @' M9 w. b# W5 c0 g; Z2 L
3 I& R; W4 H9 x% L1 \
, p% j. Q$ Z2 L% w |
|
[复制链接]
