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发表于 2012-11-13 08:48:12
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1判断语句" v1 O! V" Q! c1 w+ I& [
if <condition> then
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0 k5 J/ \* n, C) m5 |1 Y elseif <condition> then
* Z( K1 {7 N. w" ]5 [$ t <statement sequence2>;: F4 q$ q! c" k+ T# d
else
1 U8 j2 F# N& u5 G6 R" ] <statement sequence3>;
C+ s: p; b* Z: w end;* [' |' ]2 H% O4 ^
如果分支比较多，用：
{% t' A4 I; D8 O# s3 j% { inspect <expression>" P+ [ M# r' |; W3 l
when <constant_list> then8 W" b7 x9 q9 u
<statement sequence1>;
% ?0 b4 `/ K$ S when <constant_list> then# \# k! x; @& p8 T
<statement sequence2>;0 |0 A4 c0 {' q
...
# i7 y# J, B* D" P! f/ k/ x else* z1 W2 V7 o# Q) w
<statement sequence3>;
$ q8 C( w5 f( v: G: I8 t* nend;
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) |" p* q y; u8 z' S w2循环语句
) T/ v$ @7 ]! Z' }3 t, ^ (1) from <statement sequence1>
6 h x) I5 X8 @/ A until <condition> loop, S% _! f+ E7 |5 z5 t* H; O0 }
<statement sequence2>;
6 i# |+ q6 ?) |1 o" V! g end;7 o) E+ h& J* }/ q; o& L
(2) while <condition> loop# |- W$ s3 W6 d, y; R r0 g3 E
<statement sequence1>;# g7 j) k* T8 R) a
end;
! h1 z9 Y. G; k# R6 E (3) repeat
2 w: m L' G7 j5 S/ {; d <statement sequence1>;
3 L' o+ `; F) D# |0 q4 k8 O4 u until <condition>;6 s' Z- j9 h+ W/ E$ S
(4) for <condition> to <condition> loop
% B3 N( v+ K0 i8 T6 i# L <statement sequence1>;
, m7 |, H9 j0 t next;
' U$ ^) E* t- r4 _3中断语句
% b1 Z8 K& x% b6 ^0 Q' t waituntil <condition> prio <integer expression>;2 Q' V' _( Q( e2 a2 L" Z0 ~! |' N
, r9 V, Y. _4 [: Z1 v: z, {
0 d+ o) W ^8 K' d' W以上为常用的函数！" z. ~2 J- S( r4 H) P3 i) e& K
还有很多，如有需要我把资料发到你邮箱里
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