import pytest
test_user_data=['linda','sai','tom']
@pytest.fixture(scope='module')
def login(request):
    user=request.param
    print('打开首页登陆%s'%user)
    return user


#indirect=True是把login当作函数去执行
@pytest.mark.parametrize('login',test_user_data,indirect=True)
def test_cart(login):
    usera=login
    print('不同用户添加购物车%s'%usera)
    assert usera!=''

Process finished with exit code 0
打开首页登陆linda
PASSED [ 33%]不同用户添加购物车linda
打开首页登陆sai
PASSED [ 66%]不同用户添加购物车sai
打开首页登陆tom
PASSED [100%]不同用户添加购物车tom