From 3387e547bbd1d9b60ecebaeb542d6bce0bbb314f Mon Sep 17 00:00:00 2001
From: GalaxySnail <me@glxys.nl>
Date: Thu, 8 Feb 2024 18:17:04 +0800
Subject: [PATCH] =?UTF-8?q?docs/misc/bvid=5Fdesc.md:=20=E4=BD=BF=E7=94=A8?=
 =?UTF-8?q?=E6=95=B4=E6=95=B0=E9=99=A4=E6=B3=95=E4=BB=A3=E6=9B=BF=E6=B5=AE?=
 =?UTF-8?q?=E7=82=B9=E6=95=B0=E9=99=A4=E6=B3=95?=
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bv号av号转换算法本质上是一种修改过的 base58 运算，参与运算的类型都是
整数类型，所以不应该使用浮点数除法 /= 而应该使用整数除法 //=

这也修复了 mypy 的类型不匹配报错，tmp 变量被推断为整数，而
`tmp /= BASE` 相当于 `tmp = tmp / BASE`，将浮点数赋值给整数，类型不匹配
---
 docs/misc/bvid_desc.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/misc/bvid_desc.md b/docs/misc/bvid_desc.md
index bf14b86..97a6bd0 100644
--- a/docs/misc/bvid_desc.md
+++ b/docs/misc/bvid_desc.md
@@ -167,8 +167,8 @@ def av2bv(aid: int) -> str:
     bvid = [""] * 9
     tmp = (MAX_AID | aid) ^ XOR_CODE
     for i in range(CODE_LEN):
-        bvid[ENCODE_MAP[i]] = ALPHABET[int(tmp % BASE)]
-        tmp /= BASE
+        bvid[ENCODE_MAP[i]] = ALPHABET[tmp % BASE]
+        tmp //= BASE
     return PREFIX + "".join(bvid)
 
 def bv2av(bvid: str) -> int: