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发表于 2012-11-13 08:48:12
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1判断语句7 d I( b* ?. Y: b7 p( V; Z, O
if <condition> then& U1 j- J$ T3 b$ a4 b* t) y& {
<statement sequence1>;# l' r' ~ e1 _" U9 i4 x1 @
elseif <condition> then
# r1 _ ^; _8 \2 _ <statement sequence2>;
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, i4 O/ n; w) |' G <statement sequence3>;
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如果分支比较多,用:4 C% M& ~$ K- G) V1 u* g
inspect <expression>
' X( P+ f! K5 i) n when <constant_list> then; N) V3 H# F+ }2 h+ r" A5 A& _
<statement sequence1>;3 p5 u% a& V- `: N* u
when <constant_list> then
" f' Y; a/ y5 {% H* \* E0 j/ X <statement sequence2>;+ E% B/ _+ ~$ W- O9 T! g& Q
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else6 _: v! u0 \1 E( o: H8 ~0 b
<statement sequence3>;. X% l0 M, P( t1 U6 u' S# d
end;
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9 T% j; `( t( C9 l+ }8 J( Q( q5 f& M2循环语句6 d! P# p% U+ B! o8 s& E* K0 v
(1) from <statement sequence1>
2 s* U% |/ H9 \$ |( }: y until <condition> loop" L. m5 @$ \( M/ K1 d W
<statement sequence2>;6 m: |9 h) r; _& x$ u1 r o
end;6 }$ e+ ~1 P5 X* I, D" p6 H0 m; w0 i
(2) while <condition> loop# c8 M; O% p- E/ O# O% x
<statement sequence1>;9 j. w+ H3 S4 w& _; g
end;
8 t# @4 d& K! A0 w/ g/ ?- r (3) repeat 0 Z0 M! a: w, R( k( l" o: O
<statement sequence1>;
, W$ ]" k+ K! l' } until <condition>;
+ K5 T7 a0 g* S- z (4) for <condition> to <condition> loop
2 B' n6 e" T- { u9 T <statement sequence1>;
% H( D: F/ O0 Y! R! }) A% T next;" @3 I. w* Q, w3 z: X
3中断语句
. [. s; [ c( ^$ L3 b waituntil <condition> prio <integer expression>;
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4 R# ^8 w9 O8 m! p) E9 C以上为常用的函数!) X8 ]' D% } r. B& \( r8 E
还有很多,如有需要我把资料发到你邮箱里
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