add iArray initialization;split big datas to small blocks

雾聪

2023-06-24 c062a9d72e18926b97f4f5e6357a1986569069a1

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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.