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[root@luckfox myUI]# ps -ef | grep 86UI_demo
root 401 659 0 12:54 pts/0 00:00:00 grep 86UI_demo
[root@luckfox myUI]# killall 86UI_demo
killall: 86UI_demo: no process killed
[root@luckfox myUI]# ps -ef | grep 86UI_demo
root 431 659 0 12:55 pts/0 00:00:00 grep 86UI_demo
[root@luckfox myUI]# ps -ef | grep 86UI_demo
root 447 659 0 12:55 pts/0 00:00:00 grep 86UI_demo
[root@luckfox myUI]# ps -ef | grep 86UI_demo
root 449 659 0 12:55 pts/0 00:00:00 grep 86UI_demo
[root@luckfox myUI]# ps -ef | grep 86UI_Demo
root 570 659 0 12:57 pts/0 00:00:00 grep 86UI_Demo
1.86UI_Demo和86UI_demo都有，
2. 在/usr/bin/目录下的是86UI_demo ，
3. /在CMakeLists.txt里 project(86UI_demo C),
4. 交叉编译出来的是86UI_demo
5.在源代码里README.md写：
+ Close the default running `86UI_Demo` program:
```
killall 86UI_Demo
```
我现在都搞不轻触那是那了！请问怎么停止正在运行的86UI_demo/86UI_Demo，kill -9 PID 或 killall 86UI_Demo和86UI_demo 现在怎么都停止不了进程

您好，ps查看进程会启动一个进程来找寻正在对应的应用进程，而ps -ef | grep 86UI_demo
root 401 659 0 12:54 pts/0 00:00:00 grep 86UI_demo这一串打印代表着您目前grep 86UI_demo这个shell命令，并没有86UI_demo的应用进程，意味着开发板根本没有运行该应用进程，自然 killall 86UI_demo也就找不到对应进程了

viewtopic.php?t=2080
这个是我找出的问题补充！请出处理一下