yaml和json一样是一种数据呈现格式

• 对用户极为友好

• 跨语言，支持所有编程语言，如python、java、php、js等等

• 跨平台，如windows、linux、Mac

• 格式简单，比json更加简洁

• 应用极为广泛

1.读写文件

import yaml

def readYaml(path):
    with open(path,'r',encoding='utf-8') as r:
        config = yaml.full_load(r)
    return config

def writeYaml(save_path,config):
    with open(save_path,'w',encoding='utf-8') as w:
        # yaml.safe_dump(config,w,default_flow_style=False, encoding='utf-8', allow_unicode=True)
        yaml.dump(config,w,default_flow_style=False, encoding='utf-8', allow_unicode=True)

def changeYaml(yaml_path,obj):
    config = readYaml(yaml_path)
    config['common']['method'] = obj
    writeYaml(yaml_path,config)
    pass

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