目录效果功能亮点用到的依赖库项目结构拆解与说明提取工具逻辑：如何从 URL 获取文件名下载逻辑：requests 下载 + 失败捕获下载控制与进度条更新GUI 界面设计与交互逻辑使用说明实用建议源码效果
Consider a simple structure: struct abc { int a; char b; } I got some value in a variable defined as its structure, and now I want to print the below.
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