65535是正数，故补码与其原码一样。 以16位为例，二进制为 1111111111111111，十六进制为 ffff。 2进制书写繁琐， 复杂，易错；由于16进制的基数是2的4次幂，所以16进制可以实.

After the killing How parents of attackers cope BBC News

What you can do to remember the victims of Colorado's Columbine High
What you can do to remember the victims of Colorado's Columbine High

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School shooting survivor 'There's so many of us now' CNN
School shooting survivor 'There's so many of us now' CNN

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After the killing How parents of attackers cope BBC News
After the killing How parents of attackers cope BBC News

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Columbine High School Victims Honored 22 Years After Tragedy CBS Colorado
Columbine High School Victims Honored 22 Years After Tragedy CBS Colorado

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Columbine High School shooting survivor dies nearly 26 years after
Columbine High School shooting survivor dies nearly 26 years after

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