From 93edde591b0017a9bf790c8238c05755412632c8 Mon Sep 17 00:00:00 2001
From: creamlike1024 <creamlike1024@outlook.com>
Date: Wed, 29 Oct 2025 19:41:45 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E5=BD=93totalWeight=E5=B0=8F=E4=BA=8E?=
 =?UTF-8?q?=E7=AD=89=E4=BA=8E0=E6=97=B6=E8=AE=BE=E7=BD=AE=E4=B8=BA1?=
 =?UTF-8?q?=E9=80=89=E6=8B=A9=E7=AC=AC=E4=B8=80=E4=B8=AA=E6=B8=A0=E9=81=93?=
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---
 model/channel_cache.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/model/channel_cache.go b/model/channel_cache.go
index 0df14572..ddd1ddde 100644
--- a/model/channel_cache.go
+++ b/model/channel_cache.go
@@ -166,6 +166,11 @@ func GetRandomSatisfiedChannel(group string, model string, retry int) (*Channel,
 	}
 	// Calculate the total weight of all channels up to endIdx
 	totalWeight := sumWeight * smoothingFactor
+
+	// totalWeight 小于等于0时，设置为1，选择第一个渠道
+	if totalWeight <= 0 {
+		totalWeight = 1
+	}
 	// Generate a random value in the range [0, totalWeight)
 	randomWeight := rand.Intn(totalWeight)