目录概述功能亮点展示效果软件使用步骤代码解析1. 主窗口设计（FolderCopyApp）2. 拖拽路径输入框（DropLineEdit）3. 界面布局与控件绑定4. 复制结构核心逻辑5. 异常处理和提示源码下载总结概述
LINQ to SQL .Count takes way to much process time and decreases performances. I am doing a recursive loop and for one child (lets call it parent) I have to check the number of children under it to ma
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