[英]I am writing a program to replace some string with another string in python
输入字符串是这样的
$sim,abad_x_y,大鼠,2,3,a,b
123,456,1345
323,455,2433
$sim,abad_z_c,rat,2,3,c,d
123,4456,1345
323,4554,2445
Output
$sim,abad_x_y,大鼠,2,3,x,y
123,456,1345
323,455,2433
$sim,abad_z_c,rat,2,3,z,c
123,4456,1345
323,4554,2445
从 $sim 行的第二个标记 x,y 应取并替换 a,b 在最后
import os
import sys
import re
fin=open('old_file.txt','r')
fout=open('new_file.txt','a')
line_list = fin.readlines()
for w in line_list.rstrip('\n\r'):
if w.startswith('$sim'):
word_set=w.split(',')
split_zone=word_set[1].split('_')
fout=fout.write(w.replace(word_set[-1],split_zone[-1]))
fout=fout.write(w.replace(word_set[-2],split_zone[-2]))
fout=fout.write(w)
fin.close()
fout.close()
import os
import sys
import re
fin=open('old_file.perf','r')
fout=open('new_file.txt','w')
line_list = fin.readlines()
for line in line_list:
if line.startswith('$sim'):
word_set=line.split(',')
split_zone=word_set[1].split('_')
new_line=line.replace(word_set[-1],split_zone[-1])
new_line2=new_line.replace(word_set[-2],split_zone[-2])
fout.write(new_line2)
fout.write('\n')
else:
fout.write(line)
fin.close()
fout.close()
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