1.确定树莓派wifi通道和路由器wifi通道相符
2.使用wpa_passphrase thm 12345678 >> /etc/wpa_supplicant/wpa_supplicant.conf生成wifi链接地址
3.重启路由器

例子

country=CN 
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev 
update_config=1 
 
network={ 
        ssid="jtfxlm" 
        psk="jtfxlmjtfxlm" 
        priority=9 
} 
network={ 
        ssid="今天努力复习了没" 
        #psk="jtnlfxlmjtnlfxlm" 
        psk=b5fd26c583c39fefc453255e1a5539064f9adb17a7511463fb775046302782b1 
        priority=99 
}