获取设备媒体设备列表以及切换前后摄像头 pc mobile steps git clone => cd <projectName> => yarn 如果在多设备调试,navigator.getUserMedia依赖于https,HTTPS环境变量设置为true后再正常启动项目: Windows (cmd.exe) set HTTPS=true&&yarn start Windows (Powershell) ($env:HTTPS = "true") -and (yarn start) Linux, macOS (Bash) HTTPS=true yarn start