unordered_map.count

unordered_map.count是一个函数，用于统计unordered_map中某个键值对的个数。该函数的形式为unordered_map变量名.count(要查找的键值)。返回值是找到的个数。例如，如果有一个unordered_map<int, int> map，其中map<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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- *1* *3* [unordered_map的find和count函数使用总结](https://blog.csdn.net/qq_33634666/article/details/116279227)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
- *2* [unordered_map中find和count函数的区别](https://blog.csdn.net/qq_44879626/article/details/116192494)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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