(Almost all notebook computers on the market now have built-in wireless network functions. Although wireless network brings us convenience, wireless network is limited by technical problems, so the stability and quality of the line cannot be compared with wired network. When using wireless networks, we are most afraid of poor signals, but we don't necessarily know where the signals are better. At this time, we can do monitoring through wirelessmon, which can list the relevant information of wireless networks or base stations near the current computer, and list the signal strength between the computer and the base station; It can also monitor the transmission speed of the wireless network in real time, so that we can understand the download speed or stability of the network.)