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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
. q/ n! l! Y, j. v- u C. h1 h if <condition> then8 [1 B3 b- S7 n+ q3 ~: v3 u- |
<statement sequence1>;
! A6 ?9 B1 b" a. S$ b3 l2 ? elseif <condition> then2 R7 K; H$ q* A
<statement sequence2>;1 `0 P3 `% Q) x& D
else 9 |0 c. M. a- @/ j$ y- Z- O* ?
<statement sequence3>;
, c1 r0 M: l0 }6 Y+ V end;- Z7 g( \1 _! e$ l
如果分支比较多,用:* S$ C& A% D8 S. _4 v
inspect <expression># `2 w0 }0 N6 x( ^( e0 y, L4 H
when <constant_list> then9 j) [& b7 [: H7 w* Y% t
<statement sequence1>;' H- `, V" ]6 [# y! ~5 j4 d
when <constant_list> then0 e! I" X$ z' @( ^; w; p5 p' g
<statement sequence2>;
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else
- S0 r5 m u/ c! N Q2 W3 {5 E <statement sequence3>;
" b( l8 q+ Y7 p( e! jend;& n/ h7 J( b1 i% a, B
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2循环语句
& u3 ]# R( \% K6 Q; Y- C (1) from <statement sequence1>
" u- s( K0 O) I8 A until <condition> loop7 r* C( o* N8 U; A* d
<statement sequence2>;. n/ v0 c) Z0 ~+ B3 q$ y! x
end;
1 O* g( X0 Z2 Z, V& R) H (2) while <condition> loop$ T; e, E" n& W
<statement sequence1>;
! r. Z# L% p4 a* m" v( s2 C end;
- i$ c. ~- e, q3 @ (3) repeat
( a1 M4 r6 G ~7 m6 c <statement sequence1>;
* f7 M+ v% s9 @ until <condition>;$ z; U% d/ Q3 h" Q0 B- I
(4) for <condition> to <condition> loop8 E" I- `* b- u
<statement sequence1>;
: Y4 s+ U; @$ U1 _5 k next;
( f+ D8 _( C0 x/ U8 R# ?7 i3中断语句. Y) L# ^! V: @# a9 \
waituntil <condition> prio <integer expression>;9 Q6 {8 I, x( M# T3 G
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3 ?. e9 C! {6 E7 C, M以上为常用的函数!* \( ~( d* k9 P/ x) d! h5 ]
还有很多,如有需要我把资料发到你邮箱里
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