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发表于 2012-11-13 08:48:12
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1判断语句
. `4 U! o8 m F1 h z k if <condition> then
) a7 j9 D6 B- w* u1 f! ` <statement sequence1>;
; p4 ]% ?+ }9 _9 j elseif <condition> then( y6 f4 W* F0 m/ X* L/ a
<statement sequence2>;
1 ?7 @2 y& e( X$ J9 [3 T else
% i6 P% X" m0 ], D <statement sequence3>;
0 d$ q! R8 V: H end;9 y0 B2 |* f5 y, X
如果分支比较多，用：
4 E( H8 c0 |: K) f9 t! S( E inspect <expression>+ P& j) p8 L, x2 h
when <constant_list> then
4 ?! t; S, |: N5 W4 I/ I+ l7 @ <statement sequence1>;
" L! W' P6 \) l, {& H6 P2 k5 @ when <constant_list> then2 _: h1 o& E: F; y' S, n/ k
<statement sequence2>;0 x I( a `2 z' |$ {* J
...% {6 u2 }& f: U6 X
else7 ]. G% n1 |" w, U3 S" i
<statement sequence3>;
* W' j1 v6 z* Y: Tend;
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2循环语句* @5 R& {4 \1 h: ~( O {8 m" I" V! H
(1) from <statement sequence1>. u( F( _7 d$ y+ Y- W5 `, D
until <condition> loop
. g' G% \8 c1 N6 {/ g* _+ j <statement sequence2>;
9 A" P3 L' C" u0 g; i- q end;
' }/ _0 d' d$ d* _5 R (2) while <condition> loop( |; r: Y$ m6 [# F7 [
<statement sequence1>;
% L6 | {, \4 H7 ]( Z end;: V" y% G6 H6 x+ u% R& i6 R% f) q+ y
(3) repeat
) x/ S3 k( L( E <statement sequence1>;' c9 b# m2 v- v, l7 s& X5 y. A
until <condition>;
h) k. T/ l1 M2 i+ ] (4) for <condition> to <condition> loop" n+ y6 P; V5 ^5 p
<statement sequence1>;
- N9 k0 S8 p' G6 O3 L next;. z5 o9 }# ~! n7 F5 a% z
3中断语句
; ^3 R' N( J9 f3 @" b' T waituntil <condition> prio <integer expression>;
@: x9 W5 g( n4 P+ `
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以上为常用的函数！9 {, x+ M" m0 l* }- j$ X: b$ _! `- {
还有很多，如有需要我把资料发到你邮箱里 0 X9 E) E8 A% e) q# T
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