笔记

Python 文件内容修改替换操作

Python, 笔记

Python 文件内容修改替换操作

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import io

def alter_file(file,old_str,new_str):
    file_data = ""
    with io.open(file, "r", encoding="utf-8") as f:
        for line in f:
            if old_str in line:
                line = line.replace(old_str,new_str)
            file_data += line
    with io.open(file,"w",encoding="utf-8") as f:
        f.write(file_data)

使用

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alter_file('index.html','{#channel}',channel)