用 python 修改文件中指定的行数

 #! /bin/python
 
 filename='setup.ini'
 lines=[]
 with open(filename,'r') as f:
     lines=f.readlines()
 lines[1]='namespace = qmone-33c49600-4c22-486d-a397-e4f02bcdcf18' + '\n'
 lines[2]='interface = mon-33c4960d-0c' + '\n'
 
 with open(filename,'w') as f:
     for data in lines:
         f.write(data)
     f.flush()