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elf@ubuntu:~/work$ unzip libwebsockets-main.zip
elf@ubuntu:~/work$ cd libwebsockets-main/
elf@ubuntu:~/work/libwebsockets-main$ mkdir build
elf@ubuntu:~/work/libwebsockets-main$ mkdir installelf@ubuntu:~/work/libwebsockets-main$ cd build/
elf@ubuntu:~/work/libwebsockets-main/build$ cmake -DCMAKE_INSTALL_PREFIX=../install ..
elf@ubuntu:~/work/libwebsockets-main/build$ makeelf@ubuntu:~/work/libwebsockets-main/build$ make install
elf@ubuntu:~/work/libwebsockets-main/build$ cd ../install/bin/
elf@ubuntu:~/work/libwebsockets-main/install/bin$ ls
libwebsockets-test-client libwebsockets-test-lejp
libwebsockets-test-server libwebsockets-test-server-extpollelf@ubuntu:~/work/libwebsockets-main/install/bin$ libwebsockets-test-server
打开浏览器，输入http://192.168.2.101:7681，替换192.168.2.101为自己的服务器IP地址。出现如下页面，测试成功。
前提：将虚拟机设置为桥接模式，使虚拟机和开发板处于同一局域网内，确保网络连接正常。
1、虚拟机运行服务端测试程序
elf@ubuntu:~/work/libwebsockets-main/install/bin$ libwebsockets-test-server
客户端命令格式：
libwebsockets-test-client <server address> [--port=<p>] [--ssl] [-k] [-v <ver>] [-d <log bitfield>] [-l]
执行如下命令，替换192.168.2.101为自己的服务器IP地址。
root@ELF1:~# libwebsockets-test-client 192.168.2.101 --port=7681
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