我已经使用树标记器来查找语音文本和文本文件，现在我需要读取每个单词的词干输出（在输出文件的第3列中显示如下）。去做？ 如何跳过两列并阅读第三列？
the DT the
girls NNS girl
own VVP own
paper## JJ paper##
vol## JJ vol##
viii## NN viii##
no## NN no##
357## JJ 357##
october NN October
30 CD @card@
1886## JJ 1886##
price NN price
one CD one
penny## NN penny##
as IN as
the DT the
baron NN baron
had VHD have
conjectured VVN conjecture
the DT the
housemaid NN housemaid
whom WP whom
he PP he
had VHD have
called VVN call
out RP out
of IN of
the DT the
nursery NN nursery
to TO to
look VV look
for## JJ for##
lons NNS lons
cane NN cane
on IN on
finding VVG find
her PP$ her
master NN master
had VHD have
gone VVN go
without IN without
it PP it
did VVD do
not RB not
hurry VV hurry
back RB back
but CC but
stopped VVN stop
talking## NN talking##
to TO to
some DT some
of IN of
the DT the
other JJ other
servants NNS servant
for IN for
perhaps RB perhaps
a DT a
quarter NN quarter
of IN of
an DT an
hour NN hour
when WRB when
she PP she
returned VVD return
to TO to
the DT the
nursery## NN nursery##
and CC and
to TO to
her PP$ her
amazement NN amazement
found VVD find
the DT the
baby NN baby
was VBD be
gone## JJ gone##
she PP she
was VBD be
not RB not
alarmed VVN alarm
at IN at
first JJ first
except IN except
she PP she
supposed## JJ supposed##
she PP she
should MD should
get VV get
a DT a
scolding NN scolding
from IN from
the DT the
nurse NN nurse
who WP who
she PP she
imagined VVD imagine
had VHD have
come VVN come
in IN in
and CC and
taken VVN take
the DT the
child## NN child##
to TO to
another DT another
room NN room
however RB however
having VHG have
the DT the
excellent JJ excellent
excuse NN excuse
that IN/that that
her PP$ her
master NN master
had VHD have
called VVN call
her PP$ her
away RB away
she## NN she##
went VVD go
in IN in
search NN search
of IN of
the DT the
nurse NN nurse
but CC but
now RB now
not RB not
finding VVG find
her PP her
anywhere RB anywhere
and CC and
hearing VVG hear
from IN from
the DT the
footman## NN footman##
that IN/that that
she PP she
was VBD be
not RB not
expected VVN expect
back RB back
till IN till
very RB very
late JJ late
marie NN marie
became VVD become
seriously RB seriously
alarmed## JJ alarmed##
perhaps RB perhaps
madame NN madame
has VHZ have
taken VVN take
it PP it
into IN into
her PP$ her
room NN room
she PP she
might MD might
have VH have
heard VVN hear
it PP it
crying VVG cry
and CC and
fetched VVD fetch
it## NN it##
suggested VVD suggest
the DT the
footman NN footman
and CC and
marie NN marie
very RB very
much RB much
against IN against
her PP her
will MD will
felt VVD feel
she PP she
was VBD be
in IN in
duty NN duty
bound VVN bind
to## JJ to##
go NN go
and CC and
see## NN see##
so IN so
knocking VVG knock
at IN at
her PP$ her
mistresss NP mistresss
door NN door
she PP she
called VVD call
out RP out
madame NN madame
has VHZ have
she PP she
taken VVN take
the DT the
baby## NN baby##
the DT the
poor JJ poor
little JJ little
baroness NN baroness
who WP who
was VBD be
asleep RB asleep
started VVN start
up RP up
and CC and
called VVD call
to TO to
the DT the
servant NN servant
to TO to
come VV come
in## JJ in##
madame NN madame
has VHZ have
she PP she
the DT the
baby NN baby
repeated VVD repeat
the DT the
girl## NN girl##
the DT the
baby NN baby
no DT no
what WP what
do VVP do
you PP you
mean VV mean
where WRB where
is VBZ be
it PP it
and CC and
where WRB where
is VBZ be
nurse NN nurse
cried VVD cry
the DT the
baroness NN baroness
jumping## NN jumping##
up RB up
and CC and
slipping VVG slip
on IN on
a DT a
dressinggown NN dressinggown
and CC and
slippers## NN slippers##
marie NN marie
began VVD begin
to TO to
cry VV cry
and CC and
to TO to
pour VV pour
forth RB forth
such PDT such
a DT a
volley NN volley
of IN of
words NNS word
excuses NNS excuse
fears VVZ fear
alarms NNS alarm
and CC and
wonders## NN wonders##
that IN/that that
the DT the
baroness NN baroness
could MD could
make VV make
out RP out
nothing NN nothing
and CC and
rushed VVD rush
to TO to
the DT the
nursery NN nursery
to TO to
see VV see
for IN for
herself PP herself
what## NN what##
had VHD have
happened## NN happened##
the DT the
empty JJ empty
cradle NN cradle
did VVD do
not RB not
however RB however
throw VV throw
much RB much
light JJ light
upon IN upon
it PP it
and CC and
the DT the
servants## NN servants##
who WP who
answered VVD answer
the DT the
bell NN bell
which WDT which
the DT the
baroness NN baroness
clashed VVD clash
wildly RB wildly
looked VVN look
as IN as
scared VVN scare
as IN as
the DT the
sobbing VVG sob
marie## NN marie##
to TO to
find VV find
the DT the
baby NN baby
had VHD have
disappeared## NN disappeared##
a DT a
search NN search
from IN from
attic NN attic
to TO to
basement NN basement
was VBD be
at IN at
once RB once
instituted VVN institute
the## JJ the##
menservants NNS manservant
were VBD be
sent VVN send
into IN into
the DT the
grounds NNS ground
with IN with
lanterns NNS lantern
the DT the
whole JJ whole
house NN house
was VBD be
turned VVN turn
topsyturvy## NN topsyturvy##
in IN in
the DT the
midst NN midst
of IN of
which WDT which
the DT the
nurse NN nurse
returned VVD return
and CC and
finding VVG find
her PP$ her
baby NN baby
was VBD be
gone VVN go
went VVD go
into IN into
violent## JJ violent##
hysterics NNS hysteric
while IN while
the DT the
young JJ young
baroness NN baroness
with IN with
flying VVG fly
hair NN hair
and CC and
dilated VVN dilate
eyes NNS eye
rushed VVN rush
about IN about
wringing## NN wringing##
her PP$ her
hands NNS hand
and CC and
looking VVG look
as IN as
she PP she
felt VVD feel
distracted VVN distract
with IN with
grief## NN grief##
the DT the
search NN search
was VBD be
of IN of
course NN course
in IN in
vain JJ vain
and CC and
they PP they
were VBD be
just RB just
coming VVG come
to TO to
the DT the
conclusion NN conclusion
that IN/that that
the DT the
baby## NN baby##
had VHD have
been VBN be
stolen VVN steal
when WRB when
the DT the
baron NN baron
returned VVN return
from IN from
seeing VVG see
lon NN lon
off## NN off##
the DT the
moment NN moment
the DT the
baroness NN baroness
heard VVD hear
his PP$ his
voice NN voice
in IN in
the DT the
hall NN hall
she PP she
flew VVD fly
down RP down
the DT the
wide JJ wide
oak NN oak
staircase NN staircase
crying## NN crying##
arnaud NN arnaud
arnaud NN arnaud
my PP$ my
precious JJ precious
baby NN baby
is VBZ be
gone VVN go
it PP it
is VBZ be
stolen JJ stolen
find VV find
her PP her
find VV find
her PP her
or CC or
i NP i
shall MD shall
go## JJ go##
mad## NN mad##
and CC and
a DT a
glance NN glance
at IN at
her PP$ her
wild JJ wild
eyes NNS eye
almost RB almost
testified VVD testify
she PP she
spoke VVD speak
the DT the
truth## NN truth##
she PP she
is VBZ be
not RB not
stolen VVN steal
she PP she
is VBZ be
safe JJ safe
enough RB enough
said VVD say
the DT the
baron NN baron
sulkily## NN sulkily##
答案 0 :(得分：0)
假设您想要每个行的第3个标记，其中标记以空格分隔，您可以按照以下步骤操作：
BufferedReder）String#split） split方法返回一个字符串数组，第三个部分是array[2]
split方法采用正则表达式作为参数和可选限制，如果positiv告诉你应该如何应用模式。
按空格分割的正则表达式为\s+。
如果你想在你的数组中拥有最多3个元素，那么传递限制3，如果可以应用正则表达式3次，那么最后一个元素将包含所有其余的字符串。
以下是使用split方法的方法：
@Test
public void split3() {
String[] array = "the DT the".split("\\s+", 3);
System.out.println(array[2]);
array = "the DT the foo bar".split("\\s+", 3);
// last element will contain all the rest of the string.
System.out.println(array[2]);
array = "the DT".split("\\s+", 3);
System.out.println(array[2]); // java.lang.ArrayIndexOutOfBoundsException: 2
array = "the DT".split("\\s+");
System.out.println(array[2]); // java.lang.ArrayIndexOutOfBoundsException: 2
array = "the DT the foo bar".split("\\s+");
System.out.println(array[2]);
}
输出结果为：
the
> will cause java.lang.ArrayIndexOutOfBoundsException: 2
> will cause java.lang.ArrayIndexOutOfBoundsException: 2
the foo bar
the
为了安全起见ArrayIndexOutOfBoundsException，在尝试访问第3个元素之前，请始终检查结果数组的长度：
array = "the DT the".split("\\s+");
if(array.length > 2) {
System.out.println(array[2]);
} else {
// there is no 3rd column
}