Digits in a normal control sequence name are not part of the name. \ray@t1 is parsed as \ray@t followed by the digit 1, not a single control sequence \ray@t1. (You can include digits via \csname ray@t1\endcsname, but \def doesn’t work that way.) Solution: use letters instead of digits (\ray@ta, \ray@tb).
pf.append(True)
，更多细节参见新收录的资料
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南方周末：近期出现了企业以“岗位被AI替代”为由裁员引发的劳动争议。在你看来，单纯以“技术替代”解雇员工是否合理？
GitOps & team friendly kanban board integration inside VS Code