Python編程中遇到替換文檔中指定行的值操作
1苍碟、獲取文件內(nèi)容
2牺蹄、列表生成式忘伞，根據(jù) \n 切割值
3、遍歷列表沙兰，根據(jù)預(yù)定值判斷是否在其中
4氓奈、替換值
5、寫入
with open("config"), "r") as f:
config_file_content = f.read()
config_file_content = [e for e in config_file_content.split('\n')]
for i in range(len(config_file_content)):
if 'path_wd' in config_file_content[i]:
config_file_content[i] = "path_wd = {}".format(
os.path.dirname(model_path))
with open("config", "w+") as f:
f.write('\n'.join(config_file_content))
