Python 删除文件每一行的行号思路解读

def second_of_str(str,splitsymbol):
 s = str.split(splitsymbol,1)# 分隔符右边的元素
 # if  len(s) == 1:
 #  return []
 return s[1]
def move(file_path, new_file_path):
 with open(file_path,encoding='utf-8') as f:
  content = f.read().splitlines()
 # for line in content:
 #  print(line)
 new_content = []
 for line in content:
  new_line = second_of_str(line,'.')
  # 去掉后的每行加入新列表
  new_content.append(new_line)
 for line in new_content:
  print(line)
 f1 = open(new_file_path,encoding='utf-8',mode = 'w')
 for line in new_content:
  f1.writelines(line)
  f1.writelines(["\n"])
 f1.close()
 return new_content
if __name__ == '__main__':
 f = move('1.txt','2.txt')