fix exit conditions

雾聪

2023-08-31 0c6e9ac92f1ccfc045018c8fa93e57087ee23a97

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p m    p.m.
pm    p.m.
p.m.
p.m    p.m.
am    a.m.
a.m.
a.m    a.m.
a m    a.m.