*该节点实际上由 macOS 12 开始内置的
*manpage:https://ss64.com/mac/networkquality.html
**苹果官方培训材料里亦有指向 networkQuality:https://training.apple.com/content/dam/appletraining/us/en/2025/documents/Apple%20Deployment%20and%20Management%20Exam%20Prep%20Guide%20EN.pdf
networkQuality CLI 工具使用。换句话说,苹果系统是有内建测速的。*manpage:https://ss64.com/mac/networkquality.html
**苹果官方培训材料里亦有指向 networkQuality:https://training.apple.com/content/dam/appletraining/us/en/2025/documents/Apple%20Deployment%20and%20Management%20Exam%20Prep%20Guide%20EN.pdf