替换configparser 中指定的值

转自：https://blog.csdn.net/dingjha/article/details/88787557 
以读的方式打开，将文件读取到内存中
with open(r"./test.ini", "r", encoding="gbk") as f:
    #存储为一个列表的形式
    lines = f.readlines()
    print("原文件为%s"%(lines))
# 写的方式打开文件
with open(r"./test.ini", "w", encoding="gbk") as f_w:
    for line in lines:
        if "token" in line:
            # 替换
            line = line.replace("token", "Iam token")
        f_w.write(line)