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发表于 2012-11-13 08:48:12
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1判断语句
1 |* S9 S( i% r5 P0 n* v S1 @# z if <condition> then
L! c; L/ H! |, z+ m" M$ h _0 o! S <statement sequence1>;
6 x- c" N. a7 T" F0 K8 o, F elseif <condition> then
, O9 S# i8 Y% W: k, p <statement sequence2>;5 B$ W. u$ Y* C- S' D
else ) M% f- u+ ?7 ~
<statement sequence3>;1 V* I6 v- E' W/ F9 P" u. g
end;1 N* L. f8 v e' `+ q+ h" k3 z
如果分支比较多，用：& c( R+ Z6 ~, J x" G8 G" G C& Y! W
inspect <expression>0 s: y+ ?4 K4 B( u' }% C! @$ b
when <constant_list> then* \9 Y% ]4 ?1 z& n7 D7 }8 I
<statement sequence1>;
6 b. \; z7 }3 R( U% y. V when <constant_list> then
( @- u1 P7 K9 E" }& t- X0 q# q <statement sequence2>;
9 Q7 q; d: g9 {2 s) t" \ ...2 `2 P2 t0 ?6 W* t
else
/ ]/ Z) v7 U1 O) Q <statement sequence3>;
- ]" ~. M) l1 U3 s+ P0 r; Dend;
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3 A! L5 [# ~- Y3 |6 k2循环语句( ]5 ~, p( T5 D) E' B- R5 U8 u
(1) from <statement sequence1>
! d" Q$ U: r2 z7 Q until <condition> loop X% T7 V0 H/ b
<statement sequence2>;
9 w( o6 [ ?* Z6 A( ~7 R end;) } f0 O8 ?* R
(2) while <condition> loop
1 a1 t6 I9 p! z% n <statement sequence1>;. b" o# ?' X N. E3 l4 i" @2 y
end;/ ]! z0 I. k' E- `. e1 G% }
(3) repeat
/ y' u9 v4 Z$ V3 A <statement sequence1>;
: A2 p( F# }4 U0 b8 p until <condition>;1 T6 a* `1 `3 k }2 }
(4) for <condition> to <condition> loop
: V6 C0 g8 N# u4 k# D+ Y' m# }8 a <statement sequence1>;5 T7 s, Q; Y4 Z$ N) [8 |1 v# r
next;" }) H* I m! A3 Q8 l
3中断语句
+ d3 r9 h; F2 y: o waituntil <condition> prio <integer expression>;# {( `& s- s$ ]# a& c
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, V, F4 ~7 V4 D( g8 A' f6 J以上为常用的函数！
6 C' M, ]8 J' M还有很多，如有需要我把资料发到你邮箱里
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