pwm自动调频，python ,树莓派4b,gpio,风扇，控制，引脚

ios不支持 new Date('2020-09-18 16:30') 会返回NaN 需要转化为 new Date('2020/09/18 16:30') // 正则转换 ('2020/09/18 16:30').substring(0, 10).replace(/-/g, "/")

http,身份验证,token,www-authenticate,authorization,proxy-authorization,401,403,407,axios,postman,basic,服务端

linux命令,操作系统，ls,touch,mkdir,ps,Torvalds