小编str*_*mle的帖子

我想打开一个文件，搜索一个特定的单词，更改单词并再次保存文件。听起来确实很简单-但我无法使其正常工作...我知道我必须覆盖整个文件，但只能更改一个字！

我的代码：

f = open('./myfile', 'r')
linelist = f.readlines()
f.close

for line in linelist:
    i =0;
    if 'word' in line:
        for number in arange(0,1,0.1)):
            myNumber = 2 - number
            myNumberasString = str(myNumber)

            myChangedLine = line.replace('word', myNumberasString)


            f2 = open('./myfile', 'w')
            f2.write(line)
            f2.close

            #here I have to do some stuff with these files so there is a reason
            #why everything is in this for loop. And I know that it will
            #overwrite the file every loop and that is good so. …