From a173bff4b196fedc7fc2e49e3503c2fc22daafdc Mon Sep 17 00:00:00 2001
From: shaw <53377526+jtcymc@users.noreply.github.com>
Date: Fri, 20 Jun 2025 22:58:00 +0800
Subject: [PATCH 1/2] =?UTF-8?q?fix:=20=E4=BC=98=E5=8C=96=E9=9A=8F=E6=9C=BA?=
 =?UTF-8?q?=E9=80=89=E6=8B=A9=E7=AE=97=E6=B3=95=E4=BB=A5=E7=A1=AE=E4=BF=9D?=
 =?UTF-8?q?=E6=A6=82=E7=8E=87=E5=9D=87=E5=8C=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- 在选择随机元素时，使用 Math.floor() 替代 Math.round()
- 此修改解决了随机元素概率不均的问题，提高了算法的公平性
- 主要应用于人员抽奖和随机球数据生成两个场景
---
 src/views/Home/index.vue | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/views/Home/index.vue b/src/views/Home/index.vue
index e14d16c..9351c44 100644
--- a/src/views/Home/index.vue
+++ b/src/views/Home/index.vue
@@ -425,7 +425,8 @@ function startLottery() {
   luckyCount.value = leftover < luckyCount.value ? leftover : luckyCount.value
   for (let i = 0; i < luckyCount.value; i++) {
     if (personPool.value.length > 0) {
-      const randomIndex = Math.round(Math.random() * (personPool.value.length - 1))
+      // 解决随机元素概率过于不均等问题
+      const randomIndex = Math.floor(Math.random() * (personPool.value.length - 1))
       luckyTargets.value.push(personPool.value[randomIndex])
       personPool.value.splice(randomIndex, 1)
     }
@@ -587,8 +588,9 @@ function randomBallData(mod: 'default' | 'lucky' | 'sphere' = 'default') {
     const cardRandomIndexArr: number[] = []
     const personRandomIndexArr: number[] = []
     for (let i = 0; i < indexLength; i++) {
-      const randomCardIndex = Math.round(Math.random() * (tableData.value.length - 1))
-      const randomPersonIndex = Math.round(Math.random() * (allPersonList.value.length - 1))
+      // 解决随机元素概率过于不均等问题
+      const randomCardIndex = Math.floor(Math.random() * (tableData.value.length - 1))
+      const randomPersonIndex = Math.floor(Math.random() * (allPersonList.value.length - 1))
       if (luckyCardList.value.includes(randomCardIndex)) {
         continue
       }

From 87a02c080d164c5f8faa013d25b907db80fd2a69 Mon Sep 17 00:00:00 2001
From: shaw <53377526+jtcymc@users.noreply.github.com>
Date: Sat, 21 Jun 2025 23:55:17 +0800
Subject: [PATCH 2/2] =?UTF-8?q?fix:=20=E4=BC=98=E5=8C=96=E9=9A=8F=E6=9C=BA?=
 =?UTF-8?q?=E9=80=89=E6=8B=A9=E7=AE=97=E6=B3=95=E4=BB=A5=E7=A1=AE=E4=BF=9D?=
 =?UTF-8?q?=E6=A6=82=E7=8E=87=E5=9D=87=E5=8C=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

在选择随机元素时，使用 Math.floor() 替代 Math.round()
此修改解决了随机元素概率不均的问题，提高了算法的公平性
主要应用于人员抽奖和随机球数据生成两个场景
---
 src/utils/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/utils/index.ts b/src/utils/index.ts
index a8caa4a..0e714f0 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -32,7 +32,7 @@ export function addOtherInfo(personList: any[]) {
 }
 
 export function selectCard(cardIndexArr: number[], tableLength: number, personId: number): number {
-  const cardIndex = Math.round(Math.random() * (tableLength - 1))
+  const cardIndex = Math.floor(Math.random() * (tableLength - 1))
   if (cardIndexArr.includes(cardIndex)) {
     return selectCard(cardIndexArr, tableLength, personId)
   }