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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
) ^2 P6 v. J: {4 I if <condition> then
1 Z# r. H0 n/ v/ F$ I1 n <statement sequence1>;8 m! i# ^$ H! D. E& ]: Q. k8 O
elseif <condition> then
) k+ Z5 I! _) ?* A/ T" a <statement sequence2>;; M) M! @# C9 D( I7 j- k: T. F
else
. D a4 Y4 `4 ?8 N" O( X4 f* D$ F <statement sequence3>;0 O0 H5 W# M4 C, J
end;
$ n: h# \2 L# W3 ^; B如果分支比较多,用:* p2 r. e) e$ n4 ?- t
inspect <expression>" i) |( L/ D9 ~8 O3 t
when <constant_list> then c, C+ C7 M7 w1 b/ N" |, {
<statement sequence1>;
3 o, n; A1 b1 m when <constant_list> then
9 h! j$ v5 j# @ <statement sequence2>;
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else
2 t( x" y- a1 o5 y; [+ S7 ^ <statement sequence3>;
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" t* j; d8 t6 y" c: O2循环语句
9 g( f1 i8 ]7 f' i" n (1) from <statement sequence1>6 ^5 ]6 G6 P! X3 U8 Z3 m
until <condition> loop2 D9 s' ^* _. s1 I
<statement sequence2>;; @+ j5 ~( N- z2 d
end;
( F0 P3 Y7 \$ I5 B, F6 } (2) while <condition> loop
8 P( _8 p7 D* K& [8 b* x <statement sequence1>;
5 j5 X& w# f& w9 y3 f end;( \& r5 B b5 }& ]* o& ~
(3) repeat * d6 A5 q9 |/ Q" {5 `
<statement sequence1>;
6 O. ~ J: |. r) H2 `3 _ until <condition>;
, I' @2 k% E6 ?( d9 a1 d! U1 l K (4) for <condition> to <condition> loop
) h" o, ]9 _. L2 L <statement sequence1>;- }+ j+ b4 g% s% e# V
next;
- E0 N* k- q& C, Z7 _! S3中断语句
5 B$ E- ~% l4 m8 w2 \& U& H& F waituntil <condition> prio <integer expression>;8 V; k3 N- `/ b- v
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s8 c7 y. L: y0 q以上为常用的函数!
- b% u5 V, o& C还有很多,如有需要我把资料发到你邮箱里
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c; `. s; K- h) b' n
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