Helphi-CSDN博客

原创 virtualbox加载usb设备[Ubuntu]

https://download.virtualbox.org/virtualbox/https://download.virtualbox.org/virtualbox/6.1.26/Oracle_VM_VirtualBox_Extension_Pack-6.1.26.vbox-extpacksudo groupadd usbfssudo adduser $USER usbfssudo adduser $USER vboxusers

2021-09-03 14:09:14 292

原创 linux 允许非 root 用户使用 1024 以下端口

linux 允许非 root 用户默认只能使用 1024 以上端口，sysctl 指令可以修改该起始端口。#允许非root用户使用所有端口sudo sysctl net.ipv4.ip_unprivileged_port_start=0...

2020-04-24 15:09:05 2545

原创 VS Code 手动安装 Microsoft Python Language Server

原始下载地址windows = https://pvsc.azureedge.net/python-language-server-stable/Python-Language-Server-win-x64.0.5.30.nupkglinux = https://pvsc.azureedge.net/python-language-server-stable/Python-Language-...

2020-03-19 11:58:05 5775 2

原创使用 vscode 调试 revel 程序

使用 vscode 调试 revel 程序的配置如下：.vscode/launch.json{ &quot;version&quot;: &quot;0.2.0&quot;, &quot;configurations&quot;: [ { &quot;name&quot;: &quot;revel

2018-08-29 22:53:06 597

原创 ubuntu bionic 使用 HDMI 播放声音后 chrome 没有声音

#安装pavucontrol设置声音输出即可sudo apt install pavucontrolpavucontrol

2018-08-09 09:30:18 804

转载 Simulated Test of SCJP for JAVA2 PlatFORM (only for training)【修改版】

1public class ReturnIt { returnType methodA(byte x, double y) { return (short)x/y*2; }}what is valid returnType for methodA in line 2? Answer: double2class Super { public float getNum(){ret

2015-06-02 09:00:49 475