📅  最后修改于: 2022-03-11 14:59:48.098000             🧑  作者: Mango
sub_seq.pre_start() (task)
parent_seq.pre_do(0) (task)
parent_req.mid_do(sub_seq) (func)
sub_seq.body() (task)
parent_seq.post_do(sub_seq) (func)
sub_seq.post_start() (task)