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发表于 2012-11-13 08:48:12
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1判断语句 d* N5 j! T7 m, E
if <condition> then
. m9 O* e6 B" r <statement sequence1>; _/ t6 }1 P( \; P9 o+ ~
elseif <condition> then
2 N# p" k8 x5 D7 g7 f* e: w <statement sequence2>;) K. a8 v& s1 t* b8 G7 H1 i4 T
else 7 j: K+ [' ?" O/ T3 t$ n" G
<statement sequence3>;2 D0 u( G3 d( [, \/ f" [
end;% g, W; }( I4 i" c: I" }
如果分支比较多，用：
3 }* {4 D# t5 B$ R inspect <expression>
. Q$ h. C/ f* S0 U% @ when <constant_list> then2 }$ Q4 b0 F& M0 @: E
<statement sequence1>;
- K2 J, I# B6 {+ L% O7 V9 t1 O when <constant_list> then
, H) }6 X: W7 k: h+ I' @ <statement sequence2>;
+ [3 A# o% k7 z/ C* j& d k ...
5 p. u# g, F& q/ y else+ @6 e9 Z( t" V4 E# u
<statement sequence3>;
! i' t$ }& e" Send;
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' K- b7 A0 t" Z- l9 U2 c/ [2循环语句 K2 k2 E+ `4 h& ~
(1) from <statement sequence1>
/ F! h3 K4 ]" }% z! o* s* y! G& h until <condition> loop6 K) ]% g5 ]" v! l7 D
<statement sequence2>;/ i4 _) W# I' g: ]2 |, `
end;4 h! s6 d! K1 D8 C" _* b# e* x( Z
(2) while <condition> loop% ^9 l8 A t8 d6 p( }+ t% d
<statement sequence1>;
6 j( Q4 _. j( \4 F% N9 `9 O% P8 g end;6 x9 A6 L: c$ Q. Y0 R
(3) repeat
5 K2 I0 S; {- k% N5 V1 l+ w <statement sequence1>;
8 @! X5 J$ \, U& R4 f until <condition>;
* n* S" o. c1 T. V6 K7 J2 H (4) for <condition> to <condition> loop
+ o1 }5 V$ h2 b" |/ ^ <statement sequence1>;4 f9 W2 |5 O' }
next;
" l) m1 i) r" b2 s, D3中断语句& W, v$ G3 |2 H e# a: g/ P0 F
waituntil <condition> prio <integer expression>;
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以上为常用的函数！" ^" c; W# }/ F1 Z9 ^. e2 M
还有很多，如有需要我把资料发到你邮箱里
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