|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
1 [. y+ k4 L' _% G& q" {" [ if <condition> then, {, y Q! a( i/ [
<statement sequence1>;; h( |) z5 D+ Q$ y* d' A5 t
elseif <condition> then
! L/ z0 T9 y8 v) b6 x% X+ b <statement sequence2>;
1 w' @* f$ \4 A# w1 r else 9 a! M% v& a/ p2 E
<statement sequence3>;3 c7 T5 ^1 L0 y# T0 C# S
end;1 j0 K4 U8 o5 \* G0 x' N
如果分支比较多，用：
& P5 n, O- B, Q( N' ~" f1 @: g inspect <expression>- W9 t! d5 s6 U: f5 e; {
when <constant_list> then
: e' E$ i% w) _/ E% s/ a, |7 d <statement sequence1>;
2 |& D4 M( v- O9 G when <constant_list> then
% ?7 s: \+ U: F; {' Q' w2 h) v0 G <statement sequence2>;1 `4 o5 K. M: z: x, s
...& z. g. _! \% g$ p u# u% [
else
$ G8 |7 W: L, }! p5 t! b <statement sequence3>;
, U. K( u6 Z J0 N2 Tend;( |& [1 ]8 f9 H# w
5 ]1 ^1 \+ W. X* F2 U0 ]' h2循环语句2 x# J* Q7 X6 F" O3 u- F7 [, C1 F+ W
(1) from <statement sequence1>
w+ H1 q5 T- P$ X. { until <condition> loop
7 |& t/ [) j& c. _2 _) O <statement sequence2>;
( z. E$ c" J3 m& d) _. Q; r. y end;- K8 E- V% }5 W/ }
(2) while <condition> loop
6 x, I9 Y n% `+ s- x0 G( R: P1 W <statement sequence1>;
( ~; y& m' R: f; U+ c( a end;
' o; R. k- m. [ (3) repeat
f. \/ r* I, D5 g4 o <statement sequence1>;& H7 C3 W0 F: j9 ~& Z( V
until <condition>;$ Q e, \' b; ]9 M- I
(4) for <condition> to <condition> loop. ~( |; ?, J+ f9 \4 o9 K) F# o
<statement sequence1>;
: B( f) U; N* D# Y) |- i next;( s8 p J1 F0 t) o1 V' ?! P
3中断语句
. D" V) h Q% _9 s" n' j3 i u waituntil <condition> prio <integer expression>;
' U' c( n/ `1 C; D9 A9 } |5 J
" j H! d, A) A4 g& n$ U) ~7 S8 H- x: ^( S) u E; o0 d0 I
以上为常用的函数！1 P/ U( f& ~1 a9 R
还有很多，如有需要我把资料发到你邮箱里
+ T$ k' c5 r5 y" ~2 h% _2 j! ~$ Y* \% ?6 T& C0 E
6 {% f/ e A$ q) z$ e
( U" x5 Z2 ~1 n ; X$ E; B6 j% y0 x# C9 k. m
$ h5 p" c% N6 e3 B, V
# C$ K \; N f( Z+ x
$ V* D8 b) }3 J, i0 m9 V# p1 N0 L- J( K
7 ]2 |+ k7 Z' T- j+ l; ^ 1 c& ]) J W4 f* F% m
|
|
[复制链接]
