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发表于 2012-11-13 08:48:12
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1判断语句
% {5 b* N9 h4 M% G- V if <condition> then
/ |4 C: P6 ?5 \ <statement sequence1>;
& ^2 a% |& B1 r5 `0 M elseif <condition> then8 ~; k c; \0 X
<statement sequence2>;( S/ c+ }3 g) S3 z$ V4 _# }/ m% h
else D( }5 C1 E, X9 \8 k
<statement sequence3>;
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如果分支比较多，用：
8 F& [7 Z8 {8 m7 {) i) k inspect <expression>
$ P, ]& m7 r( o) B+ U+ _! x when <constant_list> then' K; K" V5 i& U; L
<statement sequence1>;3 P' D/ J& `4 `. f
when <constant_list> then1 r, C6 Y, w3 G1 p
<statement sequence2>;1 R) c8 M( r! r/ W$ d- d( S
...% z' g+ }% Q; M n( T( e; x
else) o# e- [6 c P8 E
<statement sequence3>;
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8 s# [ _ u$ v" g8 T2循环语句* W+ w: ^- t; D" O$ }, r
(1) from <statement sequence1>
* _+ j" W2 L1 T- d; L until <condition> loop
8 |% a+ Q, H) G& K4 e6 J: k0 z- M <statement sequence2>;& ]' N2 S+ U8 H4 s" ?
end;5 V% T7 Z- b2 r
(2) while <condition> loop
& T& P* x1 }; ?7 ]! e <statement sequence1>;! ~+ ^( X/ K# ^
end;
: a* _) Y! g K* G ^4 n (3) repeat " J0 E8 h' ?6 E: S5 y$ D
<statement sequence1>;5 `, c/ e8 E- z. J! {! n) M$ Q3 [$ E
until <condition>;
! t( y$ Z8 ]' L0 d1 _7 O+ N (4) for <condition> to <condition> loop
) `- Y* G2 k2 W5 R <statement sequence1>;) @$ p' u# w/ Y2 J
next;
- Z9 t/ o/ h( z3中断语句
8 W( i, @ j' n3 E6 S waituntil <condition> prio <integer expression>;
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+ e4 _1 q" U' K9 R2 E' B以上为常用的函数！+ i* b, A2 n( c$ p
还有很多，如有需要我把资料发到你邮箱里
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