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发表于 2012-11-13 08:48:12
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1判断语句- Y0 p/ M9 E7 l' q8 F q
if <condition> then' A; Y# {* x5 Y9 k- F" x
<statement sequence1>;
B* @2 k; {3 {/ Z6 u6 B) R elseif <condition> then' v$ S3 v5 ^$ c' Q- M
<statement sequence2>;5 A5 W6 H# b: u; P6 I4 I, [& F" c% v
else
& x$ i# p4 q. }) v. \, f <statement sequence3>;
7 S$ J6 P. R6 P) h7 d' a8 N end;
; U$ @6 ]& q3 N如果分支比较多，用：
# U7 M0 a: m* U' Y/ q8 D inspect <expression>$ f+ Z2 M% `& ~" P( {
when <constant_list> then
0 x$ }: |/ Q& v+ k# { <statement sequence1>;
. D4 H/ R7 O% K/ s when <constant_list> then# F' k+ i( H4 b' x
<statement sequence2>;0 ~/ c4 D4 n+ D0 Q8 |+ B& i' k
...
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<statement sequence3>;# r% P( C9 |! S/ E: ]' H
end;
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2循环语句* k* j, {; Z2 v; H: g
(1) from <statement sequence1>
5 G, }, f4 k( |, N, x) Z3 h G until <condition> loop2 Z) u" N; `) u7 S
<statement sequence2>;
. G5 ]8 V$ u& k end;
" E% B9 P+ h' U7 E$ ? (2) while <condition> loop
0 g: Z/ o f% S$ e' c) R4 T: [ <statement sequence1>;
# \, G* a) Q0 C' Y/ b5 t end;4 q) T& e4 ~& o
(3) repeat % [, k, E2 }) O: f V
<statement sequence1>;, I: b1 x s& n9 O+ Z
until <condition>;* q7 ?( {0 y" v
(4) for <condition> to <condition> loop/ r- D1 ]' _4 h _
<statement sequence1>;$ q/ {3 M0 p: Q; s% N3 A C
next;
" o3 V% E5 e0 ?; T G7 i4 h0 T( K3中断语句
[& B4 {6 X8 ]0 u6 S' C( o waituntil <condition> prio <integer expression>;. `$ y+ N; T1 e" b& ]' N$ ~+ @
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以上为常用的函数！0 o9 t9 C% E! ~. [6 k4 \
还有很多，如有需要我把资料发到你邮箱里
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