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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
5 e! F8 R! T: L: ]7 X7 p9 { if <condition> then8 i5 n$ [, X7 C5 e
<statement sequence1>;) w: V. N" y: r* f3 A" N7 b& f& M
elseif <condition> then
% Y+ w* Y6 G% x <statement sequence2>;$ O, S+ x. R, D8 ~: Y
else
4 T* z' o/ W/ @$ ^7 j <statement sequence3>;
$ X( }+ g. t% T) [+ \" e+ U end;3 J$ E1 a3 D- m/ h2 P$ A, n
如果分支比较多，用：
; `8 s& H2 Z: J6 y# | inspect <expression>
7 R3 ^3 X5 R, ^% A( Q when <constant_list> then: [8 y; d8 y) O, g+ U6 u
<statement sequence1>;
* x; |' a1 N9 I8 ^/ e6 s! K6 Y when <constant_list> then
( ` Q) R+ ]0 X4 ^$ ^ <statement sequence2>;6 s2 u. n4 z$ K1 C' Y
...* x$ U) B/ s8 X
else
- ]4 L) N9 o/ |; k6 G8 v <statement sequence3>;' ?* }( e9 U9 O1 d5 C) i% A
end;
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2循环语句
7 R, w1 {0 A" z9 q (1) from <statement sequence1>: ?9 U3 Z3 z% Q
until <condition> loop' m6 ]& n8 o2 f
<statement sequence2>;
& g& P* {, {2 ? end;" \/ I4 ]& T1 e" b+ g) d( E! y! P
(2) while <condition> loop/ O9 t/ y5 B- X; D+ n' M# T
<statement sequence1>;
/ g& j7 h) |3 w2 G$ r end;
! l v$ B( R7 Y (3) repeat
4 [. u4 T1 @/ B7 v a( x <statement sequence1>;1 l1 V8 p' r- j
until <condition>;
1 X" l/ o; n' g (4) for <condition> to <condition> loop% Q, H4 Y2 O/ u+ Z2 W; N
<statement sequence1>;2 l7 n0 C' W% I7 t, e8 Z. s3 _
next; V, i' J8 }4 ^7 O
3中断语句; F- x7 t) V9 n
waituntil <condition> prio <integer expression>;
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0 w% b7 v# J# x& a" R; _ o* m以上为常用的函数！- X+ ~" R9 P+ L- m( \4 O% s" }
还有很多，如有需要我把资料发到你邮箱里 ) T1 {3 i7 Z ~) X
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