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发表于 2012-11-13 08:48:12
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1判断语句
; @9 A$ ^$ ]$ U( e' N if <condition> then @) G; s3 T# G1 F5 p; Y
<statement sequence1>;
: Y5 {3 E1 T3 i/ z, |' ? elseif <condition> then/ g: }. {5 `) v! ^. R1 Y( Y
<statement sequence2>;
$ ^1 [& G7 ~' C9 s2 }# A else
$ j/ Y' m; p2 U" U u# m) q1 n$ b <statement sequence3>;
4 M o) m% h) V" w end;
6 D: X& h5 h7 a! O K M如果分支比较多，用：5 u+ j" Q: ]5 D, d y
inspect <expression>1 T. P: J( w9 w. k) O: b: ^
when <constant_list> then
, e. C; F! ^2 L8 j4 I <statement sequence1>;9 @+ J K- [2 D+ M, H' m$ |7 V+ E
when <constant_list> then$ b i' j/ o2 x8 ?% s3 P4 Q, Y
<statement sequence2>;- d1 y" H j7 }1 }# z5 t5 l
...
" [, x- |9 v& V4 [) [# ? else
5 z) u. j6 U5 @: U+ B+ W <statement sequence3>;7 F: I" ^0 H5 l2 K2 e
end;) d8 l% n* Y7 a5 b# l8 ?
8 R) ~6 Z5 d3 H2循环语句! |7 N& }4 E: R& B. |
(1) from <statement sequence1>
; S/ {! s5 S' o until <condition> loop
$ `5 D6 E- ~3 _ <statement sequence2>;( `" [) \" Y, W6 A& R: }
end;* ^0 d/ ?' C2 A* e o% P" ^5 U
(2) while <condition> loop9 ?0 y4 O- l H3 L9 X5 J
<statement sequence1>;8 ~7 y9 B" H' O& V
end;
! M7 `/ j% W; `4 ^ (3) repeat * I8 |3 V, m( t6 Z& I q6 r) C
<statement sequence1>;
! \% D1 Q' ]. O" t, v) }; i+ Q [ until <condition>;
) a, m8 r0 a' T1 T2 d; I* s/ f (4) for <condition> to <condition> loop
' l0 g$ A3 Z! y" e, B5 _( d) U <statement sequence1>;! k$ u4 q( c5 H& O) y% ]* G
next;( T' A' U3 @. q4 D4 N& e
3中断语句" o2 V" [) k* @, O6 Q/ E$ o
waituntil <condition> prio <integer expression>;, W6 p' b/ ^5 ]9 S1 Z8 w5 d
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以上为常用的函数！' Y5 J' H2 C+ G0 d5 P; u
还有很多，如有需要我把资料发到你邮箱里 , [2 M9 [1 z1 D- n# n
k6 M) D# J+ n0 D* }7 N* S
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+ ^. A; M0 a6 o% \0 v! T8 y& \; [: T/ h
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+ c) e9 v( T' P" c
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