当我们使用ESP系列开发板编写好程序后，可能会
遇到更改设备位置等情况，这个时候我们不需要
重新编写程序连接wifi只需要用下方的AP一键配网
便可随时更改网络一键配网在程序初始化时执行一次会尝试连接上次
已连接成功的wifi，若连接失败或者不在原来的网
络环境则会启用一个ESP开头的热点名称（无密码），
使用手机或者电脑连接此网络输入ip地址192.168.4.1
就可以通过网页配置wifi信息第一次使用建议打开串口监视器先体验一键配网，
按照串口监视器提示操作单机按钮0可以清除上次已连接的网络信息，从而重新配网Serial9600AP11000SerialprintlnhelloattachClick0LOWWiFiManager wifiManager;
wifiManager.resetSettings();这两句代码可以清除已连接的网络信息{"xtal":"80","vt":"flash","exception":"disabled","stacksmash":"disabled","ssl":"all","mmu":"3232","non32xfer":"fast","ResetMethod":"nodemcu","CrystalFreq":"26","FlashFreq":"40","FlashMode":"dout","eesz":"1M64","led":"2","sdk":"nonosdk_190703","ip":"lm2f","dbg":"Disabled","wipe":"none","baud":"115200"}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