批量修改文件内的某部分内容 python
如：把文件里每行的首名称都改为路径
import os
path0 = r'C:\Users\admin\Desktop/cc.txt'
path1 = r'C:\Users\admin\Desktop/dd.txt'
path1 = open(path1, 'w')
for i, line in enumerate(open(path0).readlines()):
strs = line.strip().split(" ")
strs = list(filter(lambda x: bool(x), strs))
name = strs[0].strip()
print('name:', name)
name_ = os.path.join(r'D:\mtcnndata1\img2', name)
print('name_:', name_)
path1.write('{0} {1} {2} {3} {4}\n'.format(name_, strs[1], strs[2], strs[3], strs[4]))