5：pyyaml

1：安装yaml

　　python3 -m pip install pyyaml

 2：加载yaml文件

　　yaml.safe_load(open('./data.yaml')

3：yaml文件　

-
  - 10
  - 10

-
  - 20
  - 30

4：实例

#参数化--前两个是变量，后面是对应的数据
@pytest.mark.parametrize('test_input,expected',[('3+5',8),('2+5',7),('7+5',30)])
def test_eval(test_input,expected):
    assert eval(test_input)==expected

@pytest.mark.parametrize('test_input,expected',yaml.safe_load(open('./data.yaml')))
def test_03(test_input,expected):
    print(yaml.safe_load(open('./data.yaml')))
    print(test_input+expected)
    assert test_input==expected