读写文件
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我有一个包含非法字符的XML文件，正在浏览文件，从所有行中删除该字符并将这些行存储在列表中。我现在想将这些相同的行写回到文件中，并覆盖已经存在的内容。
我尝试了这个：
file = open(filename, \"r+\")
#do stuff
file = open(filename, \"r\")
#read from the file
file.close()
file = open(filename, \"w\")
#write to file
file.close()
没有找到相关结果
已邀请:
2 个回复
穗揣
with open(filename, \"r+\") as file: lines = file.readlines() lines = [line.replace(bad_character, \'\') for line in lines] file.seek(0) file.writelines(lines) file.truncate() # Will get rid of any excess characters left at the end of the file due to the length of your new file being shorter than the old one, as you\'ve removed characters.疼嘶桐
with open(filename, \"r\") as f: lines = f.readlines() #edit lines here with open(filename, \"w\") as f: f.writelines(lines)