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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 B. V8 \0 Q3 g% U2 \/ c! i if <condition> then, `3 [, ~( K; l. M
<statement sequence1>;) u) u( X' p2 j3 M2 ~
elseif <condition> then6 v0 u# T4 a" n8 u& [' R
<statement sequence2>;
~% i! h1 B+ G! e' b% b2 e/ b else 3 G' l( x8 k5 D1 ^& k
<statement sequence3>;% e( I* Q! }# d- C f
end;
: k# x* L% f F如果分支比较多,用:
) H5 M* ^, r& |+ Q" h inspect <expression>
& f; Z. j `9 e) [/ n when <constant_list> then4 G& X& c [$ l( ~4 q4 F
<statement sequence1>;
9 h6 x; k0 P3 V0 {! | when <constant_list> then
* O' {" s- m$ M4 O" D" P. c, \ <statement sequence2>;
3 W J8 h8 n4 Q ...
Q, E! v# B* r% g! i$ [, j( k else
: I9 n m0 C, i% @* m8 e <statement sequence3>;8 i8 A5 a! r" u* i! q
end;' d' u8 z3 o6 S, g/ ]
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2循环语句
' t! C% X. K) ]' | (1) from <statement sequence1>; C' u% w( V3 m9 D& t
until <condition> loop: |& ]; V" s6 k; u+ \1 g7 p
<statement sequence2>;
% e; j E- |9 v3 \; w end;
# Z4 V- n0 h- |( Z% h2 v5 W (2) while <condition> loop
. A( T" p e9 @, g# l$ M% R3 B6 D <statement sequence1>;
, c. P" ?/ t7 }* \. Y8 u end;# C1 W9 I8 x% V8 R
(3) repeat ( W) h) m; o4 l* P
<statement sequence1>;
$ ?. U S# w `0 }7 m* v until <condition>;
8 F" E$ h, ?9 Y' c+ P$ E* a (4) for <condition> to <condition> loop
: n- w2 e5 B$ Y9 B8 k; I( O <statement sequence1>;% n/ a* j. }- A K( J: c9 ^. ^
next;+ v. {8 d1 [. K0 H4 l
3中断语句5 o; r1 v7 w0 U% o* T
waituntil <condition> prio <integer expression>;
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以上为常用的函数!
0 F& `: D- o, a% g还有很多,如有需要我把资料发到你邮箱里 + g/ m# l! ?- A
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