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嵌入式Linux入门-输入系统应用编程(鼠标、键盘、触摸屏)

  • 2026-03-21 11:03:25
嵌入式Linux入门-输入系统应用编程(鼠标、键盘、触摸屏)

学习带着问题学会比较好，比如，在Linux系统下，我们如何编写程序获得鼠标的位置？键盘的哪一个按键被按下了？触摸屏的哪个位置被触摸了？学过单片机的都知道，这些本质上都是一些信号，由驱动程序解析，但我们讲的是应用编程，也就是说从驱动程序中直接获取我们需要的。那么必然就需要一套规范的...

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  1. CONNECT:[ UseTime:0.000640s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000878s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000332s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000268s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000459s ]
  6. SELECT * FROM `set` [ RunTime:0.000179s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000562s ]
  8. SELECT * FROM `article` WHERE `id` = 481280 LIMIT 1 [ RunTime:0.000442s ]
  9. UPDATE `article` SET `lasttime` = 1774576716 WHERE `id` = 481280 [ RunTime:0.013407s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000266s ]
  11. SELECT * FROM `article` WHERE `id` < 481280 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000488s ]
  12. SELECT * FROM `article` WHERE `id` > 481280 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000362s ]
  13. SELECT * FROM `article` WHERE `id` < 481280 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000648s ]
  14. SELECT * FROM `article` WHERE `id` < 481280 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001165s ]
  15. SELECT * FROM `article` WHERE `id` < 481280 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000710s ]
0.090015s