Update alloc_cu.cpp C++17标准 优化map_ 初始化#17
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SuperGoodGame wants to merge 1 commit intozjhellofss:mainfrom
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Update alloc_cu.cpp C++17标准 优化map_ 初始化#17SuperGoodGame wants to merge 1 commit intozjhellofss:mainfrom
SuperGoodGame wants to merge 1 commit intozjhellofss:mainfrom
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修改
C++17 提供了 std::map::try_emplace，可以在键不存在时插入默认值，同时返回引用
避免原有隐式初始化行为可能带来的代码易读性损失和后续插入空值的潜在影响
通过所有测试