公式如下： =6371004*ACOS(1-(POWER((SIN((90-B2)*PI()/180)*COS(A2*PI()/180)-SIN((90-D2)*PI()/180)*COS(C2*PI()/180)),2)+POWER((SIN((90-B2)*PI()/180)*SIN(A2*PI()/180)-SIN((90-D2)*PI()/180)*SIN(C2*PI()/180)),2)+POWER((COS((90-B2)*PI()/180)-COS((90-D2)*PI()/180)),2))/2) 将以上公式填写在E2单元格，其中A2、B2、C2、D2单元格对应前后两个经纬度值。

Windows10下访问WSL目录的方法其实很简单，如下所示: ➜ post git:(master) explorer.exe . 即可通过文件浏览器打开当前目录。

Joplin是一款开源的笔记软件，功能十分强大，支持多种同步方式，本文简介如何为joplin设置坚果云的webdav同步。 首先，登录坚果云网页版，进入账户信息->安全选项，在第三方应用管理中点击添加应用，输入自定义名称(joplin)，点击生成密码。 然后打开joplin, 工具->选项->同步设置，参考如下设置： 同步目标:WebDAV WebDAV URL:https://dav.jianguoyun.com/dav/joplin/ ##建议添加目录joplin，否则用根目录的话会提示404失败 WebDAV 用户名: 坚果云用户名 WebDAV 密码 : 上一步生成的应用密码 然后检查同步配置提示成功即可，建议在高级选项中将最大并发连接数设置为2。

安装v2ray/nginx v2ray安装可以参考Ubuntu中v2ray客户端配置实例. Nginx安装推荐使用OneinStack一键安装脚本 准备好使用的域名，这里以**v.fuckgfw.cn**为例。 v2ray/nginx服务端配置 v2ray安装好后，服务端配置**/etc/v2ray/config.json**如下: { "inbounds": [{ "port": 99999, //代理端口号 "listen": "127.0.0.1", "protocol": "vmess", "settings": { "clients": [{ "id": "5c1eed18-fse4-41fs-9as9-e85s45bds9ef", "level": 1, "alterId": 64 }] }, "streamSettings": { "network": "ws", "wsSettings": { "path": "/fcgfw" //代理目录 } } }], "outbounds": [{ "protocol": "freedom", "settings": {} }, { "protocol": "blackhole", "settings": {}, "tag": "blocked" }], "routing": { "rules": [{ "type": "field", "ip": ["geoip:private"], "outboundTag": "blocked" }] } } 使用OneinStack一键脚本新建一个站点，域名为v.fuckgfw.cn，采用SSL加密模式，完成后编辑**/usr/local/nginx/conf/vhost/v.fuckgfw.cn.conf**文件 ...

系统信息 alair@aml:~ $ inxi -F System: Host: aml Kernel: 5.5.0-rc6-aml-s9xxx aarch64 bits: 32 Console: tty 0 Distro: Ubuntu 18.04.4 LTS Machine: No /sys/class/dmi; using dmidecode: dmidecode is not installed. CPU: Quad core ARMv8 rev 4 (v8l) (-MCP-) (ARM) clock speeds: max: 1512 MHz 1: 1512 MHz 2: 1512 MHz 3: 1512 MHz 4: 1512 MHz Graphics: Card: Failed to Detect Video Card! Display Server: N/A driver: N/A tty size: 254x72 Advanced Data: N/A out of X Audio: Card AMLGX driver: AMLGX Sound: ALSA v: k5.5.0-rc6-aml-s9xxx Network: Card: Failed to Detect Network Card! Drives: HDD Total Size: NA (-) ID-1: /dev/mmcblk1 model: N/A size: 7.8GB Partition: ID-1: / size: 6.3G used: 4.8G (76%) fs: ext4 dev: /dev/mmcblk1p2 ID-2: /boot size: 244M used: 77M (32%) fs: vfat dev: /dev/mmcblk1p1 ID-3: /var/log size: 49M used: 2.5M (6%) fs: ext4 dev: /dev/zram0 ID-4: swap-1 size: 0.91GB used: 0.00GB (0%) fs: swap dev: /dev/zram1 Sensors: None detected - is lm-sensors installed and configured? Info: Processes: 155 Uptime: 2:39 Memory: 306.4/1741.2MB Init: systemd runlevel: 5 Client: Shell (zsh) inxi: 2.3.56 Unixbench分数 alair@aml:~/unixbench-5.1.2 $ ./Run make all make[1]: Entering directory '/home/alair/unixbench-5.1.2' Checking distribution of files ./pgms exists ./src exists ./testdir exists ./tmp exists ./results exists make[1]: Leaving directory '/home/alair/unixbench-5.1.2' sh: 1: 3dinfo: not found # # # # # # # ##### ###### # # #### # # # # ## # # # # # # # ## # # # # # # # # # # # ## ##### ##### # # # # ###### # # # # # # ## # # # # # # # # # # # # ## # # # # # # # ## # # # # #### # # # # # ##### ###### # # #### # # Version 5.1.2 Based on the Byte Magazine Unix Benchmark Multi-CPU version Version 5 revisions by Ian Smith, Sunnyvale, CA, USA December 22, 2007 johantheghost at yahoo period com Wide character in print at ./Run line 1510. Wide character in printf at ./Run line 1541. Use of uninitialized value in printf at ./Run line 1378. Use of uninitialized value in printf at ./Run line 1379. Use of uninitialized value in printf at ./Run line 1378. Use of uninitialized value in printf at ./Run line 1379. Use of uninitialized value in printf at ./Run line 1378. Use of uninitialized value in printf at ./Run line 1379. Use of uninitialized value in printf at ./Run line 1378. Use of uninitialized value in printf at ./Run line 1379. Use of uninitialized value in printf at ./Run line 1588. Use of uninitialized value in printf at ./Run line 1589. Use of uninitialized value in printf at ./Run line 1588. Use of uninitialized value in printf at ./Run line 1589. Use of uninitialized value in printf at ./Run line 1588. Use of uninitialized value in printf at ./Run line 1589. Use of uninitialized value in printf at ./Run line 1588. Use of uninitialized value in printf at ./Run line 1589. 1 x Dhrystone 2 using register variables 1 2 3 4 5 6 7 8 9 10 1 x Double-Precision Whetstone 1 2 3 4 5 6 7 8 9 10 1 x Execl Throughput 1 2 3 1 x File Copy 1024 bufsize 2000 maxblocks 1 2 3 1 x File Copy 256 bufsize 500 maxblocks 1 2 3 1 x File Copy 4096 bufsize 8000 maxblocks 1 2 3 1 x Pipe Throughput 1 2 3 4 5 6 7 8 9 10 1 x Pipe-based Context Switching 1 2 3 4 5 6 7 8 9 10 1 x Process Creation 1 2 3 1 x System Call Overhead 1 2 3 4 5 6 7 8 9 10 1 x Shell Scripts (1 concurrent) 1 2 3 1 x Shell Scripts (8 concurrent) 1 2 3 Wide character in printf at ./Run line 1483. 4 x Dhrystone 2 using register variables 1 2 3 4 5 6 7 8 9 10 4 x Double-Precision Whetstone 1 2 3 4 5 6 7 8 9 10 4 x Execl Throughput 1 2 3 4 x File Copy 1024 bufsize 2000 maxblocks 1 2 3 4 x File Copy 256 bufsize 500 maxblocks 1 2 3 4 x File Copy 4096 bufsize 8000 maxblocks 1 2 3 4 x Pipe Throughput 1 2 3 4 5 6 7 8 9 10 4 x Pipe-based Context Switching 1 2 3 4 5 6 7 8 9 10 4 x Process Creation 1 2 3 4 x System Call Overhead 1 2 3 4 5 6 7 8 9 10 4 x Shell Scripts (1 concurrent) 1 2 3 4 x Shell Scripts (8 concurrent) 1 2 3 Wide character in printf at ./Run line 1483. ======================================================================== BYTE UNIX Benchmarks (Version 5.1.2) System: aml: GNU/Linux OS: GNU/Linux -- 5.5.0-rc6-aml-s9xxx -- #rc1.037 SMP PREEMPT Wed Feb 5 17:28:41 MSK 2020 Machine: aarch64 (aarch64) Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8") CPU 0: ARMv8 Processor rev 4 (v8l) (0.0 bogomips) CPU 1: ARMv8 Processor rev 4 (v8l) (0.0 bogomips) CPU 2: ARMv8 Processor rev 4 (v8l) (0.0 bogomips) CPU 3: ARMv8 Processor rev 4 (v8l) (0.0 bogomips) 19:35:59 up 2:44, 1 user, load average: 2.13, 2.07, 2.01; runlevel 5 ------------------------------------------------------------------------ Benchmark Run: 一 3月 02 2020 19:35:59 - 20:03:58 4 CPUs in system; running 1 parallel copy of tests Dhrystone 2 using register variables 6888588.0 lps (10.0 s, 7 samples) Double-Precision Whetstone 1373.9 MWIPS (9.8 s, 7 samples) Execl Throughput 877.5 lps (30.0 s, 2 samples) File Copy 1024 bufsize 2000 maxblocks 168765.4 KBps (30.0 s, 2 samples) File Copy 256 bufsize 500 maxblocks 49199.4 KBps (30.0 s, 2 samples) File Copy 4096 bufsize 8000 maxblocks 445012.9 KBps (30.0 s, 2 samples) Pipe Throughput 327924.7 lps (10.0 s, 7 samples) Pipe-based Context Switching 69606.2 lps (10.0 s, 7 samples) Process Creation 2416.8 lps (30.0 s, 2 samples) Shell Scripts (1 concurrent) 2283.5 lpm (60.0 s, 2 samples) Shell Scripts (8 concurrent) 656.5 lpm (60.0 s, 2 samples) System Call Overhead 632162.6 lps (10.0 s, 7 samples) System Benchmarks Index Values BASELINE RESULT INDEX Dhrystone 2 using register variables 116700.0 6888588.0 590.3 Double-Precision Whetstone 55.0 1373.9 249.8 Execl Throughput 43.0 877.5 204.1 File Copy 1024 bufsize 2000 maxblocks 3960.0 168765.4 426.2 File Copy 256 bufsize 500 maxblocks 1655.0 49199.4 297.3 File Copy 4096 bufsize 8000 maxblocks 5800.0 445012.9 767.3 Pipe Throughput 12440.0 327924.7 263.6 Pipe-based Context Switching 4000.0 69606.2 174.0 Process Creation 126.0 2416.8 191.8 Shell Scripts (1 concurrent) 42.4 2283.5 538.6 Shell Scripts (8 concurrent) 6.0 656.5 1094.1 System Call Overhead 15000.0 632162.6 421.4 ======== System Benchmarks Index Score 369.1 ------------------------------------------------------------------------ Benchmark Run: 一 3月 02 2020 20:03:58 - 20:32:08 4 CPUs in system; running 4 parallel copies of tests Dhrystone 2 using register variables 26826718.3 lps (10.0 s, 7 samples) Double-Precision Whetstone 5449.1 MWIPS (9.8 s, 7 samples) Execl Throughput 2965.8 lps (30.0 s, 2 samples) File Copy 1024 bufsize 2000 maxblocks 291243.4 KBps (30.0 s, 2 samples) File Copy 256 bufsize 500 maxblocks 80902.5 KBps (30.0 s, 2 samples) File Copy 4096 bufsize 8000 maxblocks 827300.0 KBps (30.0 s, 2 samples) Pipe Throughput 1252522.5 lps (10.0 s, 7 samples) Pipe-based Context Switching 217969.4 lps (10.0 s, 7 samples) Process Creation 6193.8 lps (30.0 s, 2 samples) Shell Scripts (1 concurrent) 5216.1 lpm (60.0 s, 2 samples) Shell Scripts (8 concurrent) 701.8 lpm (60.1 s, 2 samples) System Call Overhead 2375324.0 lps (10.0 s, 7 samples) System Benchmarks Index Values BASELINE RESULT INDEX Dhrystone 2 using register variables 116700.0 26826718.3 2298.8 Double-Precision Whetstone 55.0 5449.1 990.7 Execl Throughput 43.0 2965.8 689.7 File Copy 1024 bufsize 2000 maxblocks 3960.0 291243.4 735.5 File Copy 256 bufsize 500 maxblocks 1655.0 80902.5 488.8 File Copy 4096 bufsize 8000 maxblocks 5800.0 827300.0 1426.4 Pipe Throughput 12440.0 1252522.5 1006.9 Pipe-based Context Switching 4000.0 217969.4 544.9 Process Creation 126.0 6193.8 491.6 Shell Scripts (1 concurrent) 42.4 5216.1 1230.2 Shell Scripts (8 concurrent) 6.0 701.8 1169.6 System Call Overhead 15000.0 2375324.0 1583.5 ======== System Benchmarks Index Score 943.1