先运行模拟器
~/Library/Android/sdk/emulator/emulator -avd Medium_Phone_API_25
再检查adb device
/Users/xmkjsoft/Downloads/scrcpy-macos-x86_64-v3.2/adb devices
再开始实时获取模拟器画面
/Users/xmkjsoft/Downloads/scrcpy-macos-x86_64-v3.2/scrcpy --video-codec=h264 -m 800 --max-fps=30 --bit-rate=2M