python如何将多行合并成一行_文件按条件将多行合并为一行？
用Perl6实现了一个
#!/usr/bin/env perl6
class StudentInfo {
has Str $.id;
has Str $.name;
has Str $.gender;
has Str $.age;
has Str $.keshi;
has Str $.date;
has Str $.type;
has Str $.diag;
has %.index;
method new (Str $line) {
self.bless(|self.parse-line($line));
}
method parse-line(Str $line) {
my @items = $line.split: ',';
my @title = < id name gender age keshi date type diag >;
my %hash;
loop (my $i = +@title;$i < +@items;$i += 2) {
if @items[$i] ne "" && @items[$i + 1] ne "" { # 去除空的 proj re
unless %hash{@items[$i]}:exists {
%hash{@items[$i]} = @items[$i + 1];
}
}
}
my %ret = @title Z=> @items[0 .. +@title - 1]; # 拼接头部
%ret := %hash;
return %ret;
}
method num-of-proj() {
+%!index.keys;
}
method hash-key() {
return $!id ~ $!name;
}
method meger(::?CLASS:D: $other) {
for $other.index.keys -> $key {
unless %!index{$key}:exists {
%!index{$key} = $other.index{$key};
}
}
}
# $max - 指标的个数参数
method generate($max) {
my @line = ($!id, $!name, $!gender, $!age, $!keshi, $!date, $!type, $!diag);
my @keys := %!index.keys.sort;
loop (my Int $i = 0;$i < $max;$i++) {
if $i > @keys.elems - 1 {
@line.append: ('', '');
} else {
@line.append: (~@keys[$i], ~%!index{@keys[$i]});
}
}
return @line.join(',');
}
}
# o 输出
# a 追加到
# i 指标个数
# debug
#
sub MAIN(Str :o(:output($out))?,
Str :a(:append-to($append))?,
Int :i(:index-max($index)) = 8,
Bool :d(:debug($debug)) = False,
*@files) {
my %info;
my @title;
for @files -> $file {
my @lines = $file.IO.lines;
@title = @lines.shift.split: ',';
for @lines -> $line {
my StudentInfo $si .= new(~$line); ##
note $si.perl if $debug;
if %info{$si.hash-key}:exists {
%info{$si.hash-key}.meger($si);
} else {
%info{$si.hash-key} := $si;
}
}
}
if $debug {
for %info.values {
.note if $debug;
}
}
@title = @title[^8];
@title.append: (< PROJ_ RE_ > xx $index).flat Z~ ((1 ... $index) xx 2).flat.sort;
if defined($append) || defined($out) {
my $out-fh = defined($append) ?? $append.IO.open(:a) !! $out.IO.open(:w);
$out-fh.say(@title.join(',')) if defined($out);
for %info.values -> $value {
$out-fh.say: $value.generate($index)
if $value.num-of-proj >= $index;
};
$out-fh.close;
} else {
for %info.values -> $value {
say $value.generate($index)
if $value.num-of-proj >= $index;
};
}
}
使用方法
[root@localhost tmp]# ./meger.p6 --help
Usage:
./meger.p6 [-o|--output=] [-a|--append-to=] [-i|--index-max=] [-d|--debug] [ ...]
[root@localhost tmp]# ./meger.p6 -o=out.put.log testSheet.csv testSheet.csv
[root@localhost tmp]# cat out.put.log
ID,NAME,GENDER,AGE,KESHI,DATE,TYPE,DIAG,PROJ_1,RE_1,PROJ_2,RE_2,PROJ_3,RE_3,PROJ_4,RE_4,PROJ_5,RE_5,PROJ_6,RE_6,PROJ_7,RE_7,PROJ_8,RE_8
179802,彭永彪,男,82,神经内科,2013/1/1,血清,脑梗塞,ALP,88,ALT,8,AST,18,DBIL,3.4,GGT,32,IBIL,8.9,TBIL,12.3,TP,59.4
179099,王元家,男,39,手足显微外科,2013/1/1,血清,足外伤,ALP,58,ALT,32,AST,19,DBIL,2.1,GGT,44,IBIL,12.2,TBIL,14.3,TP,61.5
181012,潘国华,男,94,心肺血管科,2013/1/1,血清,高血压,ALP,84,ALT,10,AST,13,DBIL,1.5,GGT,34,IBIL,2.6,TBIL,4.1,TP,52.8
180813,朱安清,男,40,骨二科,2013/1/1,血清,足外伤,ALP,73,ALT,36,AST,19,DBIL,3.9,GGT,24,IBIL,18.6,TBIL,22.5,TP,59.6
180188,刘田英,女,80,综合一科,2013/1/1,血清,高血压,ALP,92,ALT,25,AST,24,DBIL,3,GGT,78,IBIL,7.3,TBIL,10.3,TP,64.9
178748,邓晓运,女,77,肿瘤科,2013/1/1,血清,脑梗塞,ALP,48,ALT,13,AST,16,DBIL,1.8,GGT,48,IBIL,6.1,TBIL,7.9,TP,63.3
180974,王龙,男,25,骨一科,2013/1/1,血清,肱骨干骨折,ALP,82,ALT,34,AST,36,DBIL,4.1,GGT,38,IBIL,11.6,TBIL,15.7,TP,61.7
180940,赵金成,男,79,综合一科,2013/1/1,血清,冠心病,ALP,66,ALT,54,AST,26,DBIL,5.5,GGT,30,IBIL,12.1,TBIL,17.6,TP,59
181168,张永堂,男,63,骨二科,2013/1/1,血清,肱骨干骨折,ALP,59,ALT,25,AST,35,DBIL,5.2,GGT,33,IBIL,14.4,TBIL,19.6,TP,57.1
[root@localhost tmp]#