fix: 在 PlayerDataLite 的 LastDiffToImage 函数中添加对零值的处理，以避免计算差异时出现错误

service/beatleader/model.go

@@ -524,12 +524,18 @@ func (p PlayerDataLite) LastDiffToImage(lastQueryData PlayerDataLite, onlyFirstF
 	{
 		// PP值
 		ppDiff := p.PP - lastQueryData.PP
+		if lastQueryData.PP == 0 {
+			ppDiff = 0
+		}
 		if ppDiff == 0 {
 			sb.WriteString(fmt.Sprintf("PP %.1f\n", p.PP))
 		} else {
 			sb.WriteString(fmt.Sprintf("PP %.1f(%+.1f)\n", p.PP, ppDiff))
 		} // 全球排名
 		rankDiff := lastQueryData.Rank - p.Rank
+		if lastQueryData.Rank == 0 {
+			rankDiff = 0
+		}
 		if rankDiff == 0 {
 			sb.WriteString(fmt.Sprintf("全球排名 %d\n", p.Rank))
 		} else {
@@ -537,7 +543,10 @@ func (p PlayerDataLite) LastDiffToImage(lastQueryData PlayerDataLite, onlyFirstF
 		}
 
 		// 区域排名
-		countryRankDiff := lastQueryData.CountryRank - p.CountryRank
+		countryRankDiff := p.CountryRank - lastQueryData.CountryRank
+		if lastQueryData.CountryRank == 0 {
+			countryRankDiff = 0
+		}
 		if countryRankDiff == 0 {
 			sb.WriteString(fmt.Sprintf("区域排名 %d\n", p.CountryRank))
 		} else {
@@ -546,6 +555,9 @@ func (p PlayerDataLite) LastDiffToImage(lastQueryData PlayerDataLite, onlyFirstF
 
 		// Ranked谱面均准
 		accDiff := (p.AverageRankedAccuracy - lastQueryData.AverageRankedAccuracy) * 100
+		if lastQueryData.AverageRankedAccuracy == 0 {
+			accDiff = 0
+		}
 		if accDiff == 0 {
 			sb.WriteString(fmt.Sprintf("Ranked谱面均准 %.2f%%\n", p.AverageRankedAccuracy*100))
 		} else {
@@ -553,6 +565,9 @@ func (p PlayerDataLite) LastDiffToImage(lastQueryData PlayerDataLite, onlyFirstF
 		}
 		// 总游玩记数
 		totalPlayDiff := p.TotalPlayCount - lastQueryData.TotalPlayCount
+		if lastQueryData.TotalPlayCount == 0 {
+			totalPlayDiff = 0
+		}
 		if totalPlayDiff == 0 {
 			sb.WriteString(fmt.Sprintf("总游玩记数 %d\n", p.TotalPlayCount))
 		} else {
@@ -561,6 +576,9 @@ func (p PlayerDataLite) LastDiffToImage(lastQueryData PlayerDataLite, onlyFirstF
 
 		// Ranked谱面游玩记数
 		rankedPlayDiff := p.RankedPlayCount - lastQueryData.RankedPlayCount
+		if lastQueryData.RankedPlayCount == 0 {
+			rankedPlayDiff = 0
+		}
 		if rankedPlayDiff == 0 {
 			sb.WriteString(fmt.Sprintf("Ranked谱面游玩记数 %d\n", p.RankedPlayCount))
 		} else {

service/scoresaber/model.go

@@ -339,12 +339,18 @@ func (p PlayerDataLite) LastDiffToImage(lastQueryData PlayerDataLite, onlyFirstF
 	{
 		// PP值
 		ppDiff := p.PP - lastQueryData.PP
+		if lastQueryData.PP == 0 {
+			ppDiff = 0
+		}
 		if ppDiff == 0 {
 			sb.WriteString(fmt.Sprintf("PP %.1f\n", p.PP))
 		} else {
 			sb.WriteString(fmt.Sprintf("PP %.1f(%+.1f)\n", p.PP, ppDiff))
 		} // 全球排名
 		rankDiff := lastQueryData.Rank - p.Rank
+		if lastQueryData.Rank == 0 {
+			rankDiff = 0
+		}
 		if rankDiff == 0 {
 			sb.WriteString(fmt.Sprintf("全球排名 %d\n", p.Rank))
 		} else {
@@ -353,6 +359,9 @@ func (p PlayerDataLite) LastDiffToImage(lastQueryData PlayerDataLite, onlyFirstF
 
 		// 区域排名
 		countryRankDiff := lastQueryData.CountryRank - p.CountryRank
+		if lastQueryData.CountryRank == 0 {
+			countryRankDiff = 0
+		}
 		if countryRankDiff == 0 {
 			sb.WriteString(fmt.Sprintf("区域排名 %d\n", p.CountryRank))
 		} else {
@@ -361,6 +370,9 @@ func (p PlayerDataLite) LastDiffToImage(lastQueryData PlayerDataLite, onlyFirstF
 
 		// Ranked谱面均准
 		accDiff := (p.AverageRankedAccuracy - lastQueryData.AverageRankedAccuracy) * 100
+		if lastQueryData.AverageRankedAccuracy == 0 {
+			accDiff = 0
+		}
 		if accDiff == 0 {
 			sb.WriteString(fmt.Sprintf("Ranked谱面均准 %.2f%%\n", p.AverageRankedAccuracy))
 		} else {
@@ -368,6 +380,9 @@ func (p PlayerDataLite) LastDiffToImage(lastQueryData PlayerDataLite, onlyFirstF
 		}
 		// 总游玩记数
 		totalPlayDiff := p.TotalPlayCount - lastQueryData.TotalPlayCount
+		if lastQueryData.TotalPlayCount == 0 {
+			totalPlayDiff = 0
+		}
 		if totalPlayDiff == 0 {
 			sb.WriteString(fmt.Sprintf("总游玩记数 %d\n", p.TotalPlayCount))
 		} else {
@@ -376,6 +391,9 @@ func (p PlayerDataLite) LastDiffToImage(lastQueryData PlayerDataLite, onlyFirstF
 
 		// Ranked谱面游玩记数
 		rankedPlayDiff := p.RankedPlayCount - lastQueryData.RankedPlayCount
+		if lastQueryData.RankedPlayCount == 0 {
+			rankedPlayDiff = 0
+		}
 		if rankedPlayDiff == 0 {
 			sb.WriteString(fmt.Sprintf("Ranked谱面游玩记数 %d\n", p.RankedPlayCount))
 		} else {