如何创建 function:使用文件名作为 function 参数从 SD 卡文件中获取单个值 [英]How to create a function: Get a single value from SD card file using the file name as function parameter
如何在Windows上使用Qt c ++搜索特定的SD卡并进行读写操作? [英]How to search a specific SD card and read from\write to it using Qt c++ on Windows?