yaml文件读写操作

1、读取yaml：load（）

data.yaml文件：

#字典
name: "hello"

读取data.yaml文件：

import yaml
 
def main():
    with open("./data.yaml","r") as f:
    data=yaml.load(f,Loader=yaml.FullLoader)
    print(data)
 
if __name__ == '__main__':
    main()

注意：要加上Loader=yaml.FullLoader，否则会报错：YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.

运行结果：

 

 

2、写入yaml文件：dump（）

data={"S_data":{"test1":"hello"},"Sdata2":{"name":"汉字"}}

写入操作：

#coding=gbk
import yaml
 
def main():
    #写入数据：
    data={"S_data":{"test1":"hello"},"Sdata2":{"name":"汉字"}}
    with open("./data.yaml","w") as f:
        yaml.dump(data,f,encoding='utf-8',allow_unicode=True)
if __name__ == '__main__':
    main()

注意：data数据中有汉字时，加上：encoding='utf-8',allow_unicode=True

运行结果：