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发表于 2012-11-13 08:48:12
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1判断语句% ^1 q m3 N- [4 `7 r
if <condition> then* Q# a+ }* ^; x" J& k$ F+ x
<statement sequence1>;
1 P9 R- z) c6 p- _/ t7 n# ^. | elseif <condition> then T% A4 Q3 u& l' O4 Y8 ?1 [& B
<statement sequence2>;
( f# D! E9 u. ]- p! s. F else
+ `0 o3 M1 O" O% n <statement sequence3>;0 s5 {2 u# g5 [/ U; m0 i7 V
end;: Z( L9 M6 o& C9 h- }
如果分支比较多，用：
8 D) K6 F( ]) k8 o# v/ k' i. a8 H inspect <expression>
* M, l! v) W0 s; n+ T' x when <constant_list> then5 a1 y4 l3 y0 u
<statement sequence1>;- @# W* x6 t3 V. B8 f* C# _
when <constant_list> then
; Z4 ?: ^1 ~; j7 w <statement sequence2>;4 D* j4 h' \3 }6 F; _
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else7 I- r5 o( v/ f2 q# y
<statement sequence3>;
: T0 d1 L; N5 Y2 `' [+ {0 N3 Z, P8 |7 uend;
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( v& h$ A/ J! z- x2循环语句
' e5 U# h, T+ Z& a4 h: w0 c7 v (1) from <statement sequence1>0 s& V3 B3 f& \& m
until <condition> loop \4 D4 Y' a* q
<statement sequence2>;
6 ?2 @) H" z3 D9 M+ P" t7 Y end;
6 E- Z. t A5 m l (2) while <condition> loop. u' f+ | `6 b% {( }
<statement sequence1>;0 v; d8 o, X/ s9 Q, l* A
end;2 H8 g: Q s ?2 q( D) ~
(3) repeat
# q5 g+ B/ o. K8 o% |0 S <statement sequence1>;: L9 W. t# g; o# c( C
until <condition>;
8 x! e9 r, o4 Q8 g6 U (4) for <condition> to <condition> loop- \1 L5 n9 p! o4 G* y2 n, o- q
<statement sequence1>;; F. n1 j' h1 V6 S
next;
# r _- u1 \( U9 O5 ]3 d/ X j, @3中断语句8 {3 G9 t$ u1 I( _4 [/ u4 G7 Z" w+ y
waituntil <condition> prio <integer expression>;
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# A# D! \5 U. f" l7 b' j- F以上为常用的函数！
4 ]! h2 W+ }9 B) w, A) _还有很多，如有需要我把资料发到你邮箱里 5 {% W. s* ?1 w) K
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