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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
& ^' R- n) I8 t$ b: j4 @ if <condition> then' F, K" u, \! b. }! I+ N- Y
<statement sequence1>;: D l3 O" H) c& g: e$ m
elseif <condition> then
' i! m! C9 o2 U* V <statement sequence2>;
1 e# m' ]( d/ ]7 B* i+ r1 F* k ~ else
0 t- G9 J( W# ^2 X x+ o <statement sequence3>;
8 o3 ?" u$ g' {; @ end;- x {9 i9 F0 J Z5 e7 M) j
如果分支比较多,用:& a% U: c6 j. \" t
inspect <expression>
& s0 p% H: J1 X% e when <constant_list> then
. B' v7 M4 B0 W) Q9 a <statement sequence1>;
( }3 }3 L% k. H1 L- f5 `# R when <constant_list> then
6 @( M: I1 g3 S M4 r6 H7 k: s <statement sequence2>;% c+ v8 s1 a/ H' b8 M: u0 L
...
% g$ g: I; i: h0 } else
& }5 T; D. _+ K- H( S, c <statement sequence3>; i) z0 B" W( H- C, M4 y
end;
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2循环语句
6 M% ] [1 o6 `; e7 x7 w, [; L% Y (1) from <statement sequence1>
* M: m$ {9 `% p8 G1 | until <condition> loop9 R' l/ R$ n9 E: r. y6 `4 t9 I9 t
<statement sequence2>;( @4 I6 t1 ~0 j4 {8 F
end;
- B1 h$ |, d' D5 k1 Y. m1 ]2 x (2) while <condition> loop: |# R1 j9 r. n9 I- r
<statement sequence1>;! w' e7 L" b+ W! y. a" b& c
end;
6 c. y6 L/ k1 f( e4 x- Y8 U (3) repeat 2 |6 D# R2 K' _% A4 N) N
<statement sequence1>;" G6 H3 V. U$ L. y; o
until <condition>;$ n7 y; T" j, K! C: b8 `, B6 s! |
(4) for <condition> to <condition> loop q4 R* j9 l* X5 Z
<statement sequence1>;
7 j" o) U6 }. g3 C next;
; R! [9 H/ Y C' Y3中断语句
6 @9 Z4 Z: k6 n# y$ n3 f waituntil <condition> prio <integer expression>;/ E( Z; g4 b, _% D& v2 n
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+ V$ r' @3 \, }0 Y以上为常用的函数!
. e/ e4 n8 c0 m; `; f# v0 V/ Y: {还有很多,如有需要我把资料发到你邮箱里
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