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Modified
docs/other/bvid_desc.md
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XFEstudio/bilibili-API-collect
添加Rust版本bvid算法
f8a8f8a
代码差异
1 个文件
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## 编程实现
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使用 Python、C、TypeScript、Java、Kotlin 以及 Golang 等语言作为示例，欢迎社区提交更多例程
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使用 [Python](#Python) [C](#C) [TypeScript](#TypeScript) [Java](#Java) [Kotlin](#Kotlin) [Golang](#Golang) [Rust](#Rust) 等语言作为示例，欢迎社区提交更多例程
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注: 新算法只提供了Python版本
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注: 新算法只提供了 [Python](#Python) 和 [Rust](#Rust) 版本
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### Python
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```python
@@ -385,3 +385,40 @@ func main() {
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BV17x411w7KC
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170001
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```
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### Rust
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crate: https://github.com/stackinspector/bvid
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```rust
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// Copyright (c) 2023 stackinspector. MIT license.
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const XORN: u64 = 177451812;
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const ADDN: u64 = 100618342136696320;
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const TABLE: [u8; 58] = *b"fZodR9XQDSUm21yCkr6zBqiveYah8bt4xsWpHnJE7jL5VG3guMTKNPAwcF";
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const MAP: [usize; 10] = [9, 8, 1, 6, 2, 4, 0, 7, 3, 5];
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const REV_TABLE: [u8; 74] = [
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13, 12, 46, 31, 43, 18, 40, 28, 5, 0, 0, 0, 0, 0, 0, 0, 54, 20, 15, 8,
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39, 57, 45, 36, 0, 38, 51, 42, 49, 52, 0, 53, 7, 4, 9, 50, 10, 44, 34, 6,
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25, 1, 0, 0, 0, 0, 0, 0, 26, 29, 56, 3, 24, 0, 47, 27, 22, 41, 16, 0,
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11, 37, 2, 35, 21, 17, 33, 30, 48, 23, 55, 32, 14, 19,
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];
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const POW58: [u64; 10] = [
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1, 58, 3364, 195112, 11316496, 656356768, 38068692544,
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2207984167552, 128063081718016, 7427658739644928,
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];
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pub fn av2bv(avid: u64) -> [u8; 10] {
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let a = (avid ^ XORN) + ADDN;
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let mut bvid = [0; 10];
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for i in 0..10 {
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bvid[MAP[i]] = TABLE[(a / POW58[i]) as usize % 58];
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}
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bvid
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}
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pub fn bv2av(bvid: [u8; 10]) -> u64 {
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let mut a = 0;
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for i in 0..10 {
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a += REV_TABLE[bvid[MAP[i]] as usize - 49] as u64 * POW58[i];
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}
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(a - ADDN) ^ XORN
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}
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```