1、激活wifi

#启动wifi
rfkill unblock wifi

#激活网卡
sudo ifconfig wlan0 up

#扫描wifi
sudo iwlist wlan0 scan | grep ESSID

#关闭wifi
rfkill block wifi

2、设置wifi

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

#在文件中添加如下内容
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
    ssid="wifi名字"
    psk="wifi密码"
}

3、设置wifi静态ip（非必需）

sudo nano /etc/dhcpcd.conf

#在文件中添加如下内容
interface wlan0
static ip_address=192.168.0.190
static routers=192.168.0.1
static domain_name_servers=192.168.0.1