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java - RandomAccessFile为什么位移4次就能写入一个Int?

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  • PHP中文网

    PHP中文网2017-04-18 10:41:19

    aaaaaaaabbbbbbbbccccccccdddddddd
>>>24
000000000000000000000000aaaaaaaa
&FF
000000000000000000000000aaaaaaaa
    aaaaaaaabbbbbbbbccccccccdddddddd
>>> 16
0000000000000000aaaaaaaabbbbbbbb
&FF
000000000000000000000000bbbbbbbb
    aaaaaaaabbbbbbbbccccccccdddddddd
>>> 8
00000000aaaaaaaabbbbbbbbcccccccc
&FF
000000000000000000000000cccccccc
    aaaaaaaabbbbbbbbccccccccdddddddd
>>>0
aaaaaaaabbbbbbbbccccccccdddddddd
&FF
000000000000000000000000dddddddd

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  • 黄舟

    黄舟2017-04-18 10:41:19

    Sama seperti jawapan pertama, bit masking 0xFF menutupi 24 bit atas data, jadi tiada pertindihan

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