下面的框架在调用时如何把公共方法转换为类级别

霍格沃兹答疑区
1

lALPD4Bhuc6T1GXNAlnNBHU_1141_601
lALPD4Bhuc6T1GXNAlnNBHU_1141_6011141×601 62.1 KB

lALPD26eQJa1hqDNAhnNA-A_992_537
lALPD26eQJa1hqDNAhnNA-A_992_537992×537 53.4 KB

lALPD3W5PeBNgenNAp7NBGY_1126_670
lALPD3W5PeBNgenNAp7NBGY_1126_6701126×670 80.9 KB

2

setup_class ?