字典迭代变量赋值异常：Solo排位变量被错误设为None

核心问题 #

你的代码逻辑存在关键漏洞：两个循环都会完整遍历整个ranked_stats列表。以Solo排位的循环为例：

• 第一个条目是RANKED_SOLO_5x5，此时会正确给所有solo_*变量赋值
• 但第二个条目是RANKED_FLEX_SR，进入else分支后，所有solo_*变量会被重新设为None
• 循环结束后，变量保留的是最后一次循环的结果，也就是None

Flex循环看似正常，只是因为列表最后一个条目是RANKED_FLEX_SR，最后一次循环覆盖成了正确值而已。

修复方案 #

方案1：初始化默认值，遍历仅更新匹配项

先把所有变量初始化为None，遍历列表时只在匹配到对应队列类型时更新变量，不执行else分支的覆盖操作：

# 初始化Flex变量为默认值
flex_rank_name = "None"
flex_tier = "None"
flex_rank = "None"
totalrank_flex = "None"
winrate_flex = "None"
wins_flex = "None"
losses_flex = "None"

# 初始化Solo变量为默认值
solo_rank_name = "None"
solo_tier = "None"
solo_rank = "None"
totalrank_solo = "None"
winrate_solo = "None"
wins_solo = "None"
losses_solo = "None"

# 一次遍历处理两种队列类型
for rank in ranked_stats:
    if rank['queueType'] == "RANKED_FLEX_SR":
        flex_rank_name = "Ranked Flex"
        flex_tier = rank["tier"]
        flex_rank = rank['rank']
        totalrank_flex = flex_tier + " " + flex_rank
        winrate_flex = rank['wins']/(rank['wins']+rank['losses'])
        winrate_flex *= 100
        winrate_flex = "{:.2f}%".format(winrate_flex)
        wins_flex = rank['wins']
        losses_flex = rank['losses']
    elif rank['queueType'] == "RANKED_SOLO_5x5":
        solo_rank_name = "Ranked Solo/Duo"
        solo_tier = rank["tier"]
        solo_rank = rank['rank']
        totalrank_solo = solo_tier + " " + solo_rank
        winrate_solo = rank['wins']/(rank['wins']+rank['losses'])
        winrate_solo *= 100
        winrate_solo = "{:.2f}%".format(winrate_solo)
        wins_solo = rank['wins']
        losses_solo = rank['losses']

方案2：用字典存储结果（更简洁易维护）

把两种排位的数据存入字典，避免大量独立变量，代码结构更清晰：

rank_data = {
    "flex": {
        "name": "None",
        "tier": "None",
        "rank": "None",
        "total_rank": "None",
        "winrate": "None",
        "wins": "None",
        "losses": "None"
    },
    "solo": {
        "name": "None",
        "tier": "None",
        "rank": "None",
        "total_rank": "None",
        "winrate": "None",
        "wins": "None",
        "losses": "None"
    }
}

for rank in ranked_stats:
    queue_type = rank['queueType']
    if queue_type == "RANKED_FLEX_SR":
        target = rank_data["flex"]
        target["name"] = "Ranked Flex"
    elif queue_type == "RANKED_SOLO_5x5":
        target = rank_data["solo"]
        target["name"] = "Ranked Solo/Duo"
    else:
        continue  # 跳过其他队列类型
    
    target["tier"] = rank["tier"]
    target["rank"] = rank["rank"]
    target["total_rank"] = f"{rank['tier']} {rank['rank']}"
    total_games = rank['wins'] + rank['losses']
    winrate = (rank['wins'] / total_games) * 100
    target["winrate"] = "{:.2f}%".format(winrate)
    target["wins"] = rank['wins']
    target["losses"] = rank['losses']

# 使用时直接取字典对应值，比如rank_data["solo"]["total_rank"]

验证效果 #

用你提供的ranked_stats列表测试，两种方案都能正确得到：

• Solo排位数据：BRONZE II，胜率61.54%，胜8负5
• Flex排位数据：BRONZE II，胜率50.00%，胜5负5

内容的提问来源于stack exchange，提问作者Exo