解决PytestUnknownMarkWarning: Unknown pytest.mark.welcome - is this a typo? You can register custom marks to avoid this warning

在项目下新建一个pytest.ini的配置文件，里面如下配置即可。markers=后面是标签名，如有多个，第二个开始要换行，且要缩进，不然会报错

[pytest]
markers=welcome
    login