import os

import fileinput

with fileinput.input('tip.data',backup='.bak',inplace=True) as f:

    for line in f:

        line = line.rstrip().replace('0.417000','0.5564') 

        line = line.rstrip().replace('-0.834000','-1.1128')

        print(line)

replace.py

运行：python3  replace.py