Yaml数据读取和数据转化

Yaml文件

familyInfo.yaml

name: Tom Smith
age: 37
wife:
  name: Jane Smith
  age: 25
children:
  - name: Jimmy Smith
    age: 15
  - name: Jenny Smith
    age: 12

yaml数据转化 dump（）可以将Python的对象序列转化成YAML流，如果stream是none，那返回的则是字符串

import yaml

slogan=['welcome','to','51zxw']
website={'url':'www.12345678'}

print(slogan)
print(website)

print(yaml.dump(slogan))
print(yaml.dump(website))

yaml数据读取 load（）解析文件流中的第一个YAML文档并生成相应的Python对象

import yaml
file=open('./familyInfo.yaml','r')
data=yaml.load(file)

print(data)

print(data['name'])
print(data['age'])

print(data['wife']['name'])
print(data['wife']['age'])

print(data['children'])
print(data['children'][0]['name'])
print(data['children'][0]['age'])

#修改变量的值，但是不会影响yaml文件中的值
data['name']='zhangsan'
print(data['name'])