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发表于 2012-11-13 08:48:12
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1判断语句% }( L( w5 H& s& c5 H2 k1 E
if <condition> then
. }# a7 l: T& s' F' a6 O <statement sequence1>;
2 P, \7 _6 y# L2 I& T4 W elseif <condition> then
7 x8 T3 Z6 l) y: h8 v# ^: B <statement sequence2>;( K. A O, ?. o7 X3 m
else
7 ^4 f l! Z& q1 T <statement sequence3>;
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如果分支比较多,用:
" U# T% C/ Z: V6 S inspect <expression>
& P7 _9 W4 q/ j! `$ G7 b$ C when <constant_list> then: a2 `8 s3 B( u8 y! m6 `5 b
<statement sequence1>;
3 c1 H0 P9 y$ T1 U4 H9 k( f when <constant_list> then
7 J( T% T" f; y; { <statement sequence2>;
# l8 e$ u2 n' I9 y/ [" ]4 G ...
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<statement sequence3>;
6 f& v/ w2 [8 W# }6 k0 Rend;
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2循环语句
8 |: ~' p! Q. H, D U) r% T (1) from <statement sequence1>
3 {4 f3 @ \- H6 m0 b: L5 H until <condition> loop/ ^% U* a0 Y+ T% j& I" R
<statement sequence2>;9 o" t8 s% b& f3 \- n+ E- I
end;
6 L" l7 K& ^, D9 P (2) while <condition> loop
5 e; T" h1 S4 J4 C! j& e, }, N) @ <statement sequence1>;" v5 d4 w: O* {6 P
end;
5 r9 v( n$ p& A (3) repeat
) g& f9 c. H$ q2 s6 b) i% \ <statement sequence1>;% s& b, E, s0 B- \! ~$ f4 }
until <condition>;
6 E) V' Z3 Q" H2 I1 N (4) for <condition> to <condition> loop) Q5 |$ o$ T' ?/ @' x+ j# S7 k5 ]/ R( L/ _
<statement sequence1>;
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3中断语句. n3 g/ m! Y; f, `" z9 n0 c
waituntil <condition> prio <integer expression>;
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" A& Y+ ]* r7 x& r2 U( W以上为常用的函数!; ^' a5 i+ u2 D
还有很多,如有需要我把资料发到你邮箱里
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