常用函数

```

def save_infos(filename, infos):

# 将信息保存到指定文件

    if isinstance(infos, str):

infos = [infos]

try:

file_content =open(filename, 'a')

except Exception as e:

file_content =open(filename, 'w')

for infoin infos:

file_content.write(str(info) +'\n')

file_content.close()

```