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Merge pull request #1 from RustSpark/dev_company
网络ipv4,进制之间的联系
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---
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id: v4rukfft5azzzm4tuuq0luz
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title: 网路
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desc: ''
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updated: 1724597743025
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created: 1724595869092
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---
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### 2024-08-25 22:24:32
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#### IP(Internet Protocol)
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1. ipv4
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1. 32位,4 * 8
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2. 主机部位(与子网掩码AND位操 -> 网络,主机部位),全为0是网络地址,全为1是广播地址,1-254(十进制)为主机地址
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id: d5bnv0lte7xttl2o2o3l9a8
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title: 进制
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desc: ''
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updated: 1724594915389
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created: 1724593925333
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---
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### 2024-08-25 21:52:31
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#### 二进制
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1. 正数
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1. 反码和原码相同
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2. 补码和原码相同
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2. 负数
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1. 各位数取反,排除符号位
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2. 各位数取反(排除符号位),末尾加1
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3. XOR 输入不同为1,反之为0

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