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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
/ [4 t, e8 [/ A( D y if <condition> then
* A7 N, G: }" b0 t8 d$ X$ | <statement sequence1>;
. u# M; {! n6 ^0 T# N. b elseif <condition> then
4 f a7 ~. @- D: z <statement sequence2>;
j0 Y& c5 F1 d) g b& c4 b else
8 {6 c# B2 |' f* S3 J/ F <statement sequence3>;) Q# N" w! F, Z, f' s6 [% M
end;
( V, d0 ]! y2 f& J. z如果分支比较多,用:) U/ D$ V6 W G* z) n
inspect <expression>
9 i W+ k5 c% s6 W t9 {7 A when <constant_list> then
; d2 s) t7 d0 o0 d" k <statement sequence1>;8 }( A8 ~$ H; p8 A
when <constant_list> then
7 R5 Q/ T# Y9 ]0 M <statement sequence2>;
2 n9 y" {) m/ K! V" w+ J ...
! G& ]- H2 ^5 L, B* y else
4 E p* N* @+ `9 E6 s) X" `$ _8 U. y <statement sequence3>;
$ ]4 E- u( N' @0 h w$ C" `end;, e- Z1 `- _! m0 H/ G z
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2循环语句
* d( \# j, p" }/ y (1) from <statement sequence1>) ~: R. G$ d( x% k& y% ?
until <condition> loop
' u, [+ u! W6 z% s <statement sequence2>;
& x* z' w/ Z4 z5 k+ p1 r D% T end;# y0 Z# H8 Q( [6 c5 x& Q% z
(2) while <condition> loop
1 n- b! l6 D# C { <statement sequence1>;. _- V, b8 t* l8 I' a2 Y
end;8 w* G7 |! B$ ^% Y7 W! g$ Z: p* o3 y
(3) repeat 5 l. f# h" P1 _& A
<statement sequence1>;: z: \9 l! A# u6 r! v; \+ B
until <condition>;0 Z5 y+ k R& {# F& _6 K
(4) for <condition> to <condition> loop8 X: E" {& z* L2 k) ?4 j7 M, k/ r) x
<statement sequence1>;
7 u0 J2 {4 `0 j4 }% d next;
* u+ a5 P! t J# [! Z3中断语句8 [2 @& W# E7 [. `1 d) R _* Q6 W* a
waituntil <condition> prio <integer expression>;
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5 m8 q$ o4 E9 F6 P, D* @
- K X: U* h3 I$ ?以上为常用的函数!
) A2 i, i- G J `& b3 w- T! [还有很多,如有需要我把资料发到你邮箱里 ( s# `- B* q! a2 L' \" Y9 K5 ?
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