|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
: j4 M; g9 U' |- ?6 q p if <condition> then: A- L5 W& Q; j+ F; q. M5 |
<statement sequence1>;/ \+ ?8 Q) j+ L' n9 f9 G7 ] V6 e& n5 ^
elseif <condition> then
; T) F b+ i4 A" V1 s+ G) A <statement sequence2>;" `8 o- O, {- ~1 S4 S; O$ ~
else
& w, U2 h1 i' E+ g" F' f <statement sequence3>;; g1 X) y' h. Q4 |0 I) I
end;
9 X9 p* f$ A. [7 R8 ~如果分支比较多，用：
1 v1 w$ o* L& U' F: j o/ @ inspect <expression>
1 O& \# \' [3 j/ K" V* | when <constant_list> then% m6 }9 X$ r2 o; ?" [( k
<statement sequence1>;) |4 y/ t: X( e5 |- o- n! }3 O
when <constant_list> then0 C& Z" f1 \! P( ~, \
<statement sequence2>;
' `2 l4 O+ p+ j' _$ [! ? ...
7 X6 V" ~% ^/ `4 H7 _ else
2 M% k( I9 r7 o9 c7 E( J0 w <statement sequence3>;
& {# I' \: p' mend;4 `8 u& p" m% [/ N4 i
2 E, k( C1 s# R
2循环语句# U; f$ B( E6 G! l% v% T2 C
(1) from <statement sequence1>
) i ?. o+ x0 I( e+ Q3 | until <condition> loop
! B" X) z7 b+ O* U, t" x <statement sequence2>;
3 P L B& P$ Z end;3 |7 A P' `* y1 S8 U
(2) while <condition> loop
7 p* i: }" ~: l) Z% e! n6 [ <statement sequence1>;
* t; T. l' P, v) A end;$ W( ?8 M3 r C1 M% j/ [: h
(3) repeat
9 B. R, o6 C( Y <statement sequence1>;
5 ^2 N; x) o1 _# A: j% a until <condition>;
0 Z; s( G3 J! R$ Q s (4) for <condition> to <condition> loop
& H _; e0 g$ t4 H <statement sequence1>;) w, |( g% l( Y" d6 E+ P- @$ H3 p# @
next;
. p: T0 h' i) _, i% U* O$ c: ?3中断语句( h, {1 m( D$ W B" |5 y% ]
waituntil <condition> prio <integer expression>;
! R. ~9 b& V" H/ h
^4 H Q2 L! w! U6 D/ ~1 B9 \# g
/ m4 z0 @+ `: t1 Y H6 s以上为常用的函数！3 D5 n+ {0 p3 x+ j
还有很多，如有需要我把资料发到你邮箱里
. z8 S1 g1 u3 h$ m- u5 T; |8 b, w4 e% ~& L0 q2 s& [9 [
1 X- U2 e# e0 B2 t) {* i! t" S- U2 {6 `
# M ?( K% G8 n' Y2 P7 V 1 o7 Q5 {7 a+ U- l( D
" ~. T- Y& u) i7 l# d
$ b3 l# o$ Z2 O. v2 z
) N" V+ L `1 d$ P! V( c1 m. ]) w! @# Y% @
, k1 Q) |7 k' ?' L3 B+ T: w
* C: m+ A) B. E% n9 ~5 |
|
|
[复制链接]
