## 调用方法：
`Wifi.on('associated',function(details){...});`
## 参数
`details`\- 具有事件详细信息的对象
## 描述
当与接入点的关联成功时，即已建立与 AP 网络的连接时，将调用`associated`事件。
在 ESP32/ESP8266 上有一个`details`参数，其中包括：
* ssid - 建立关联的接入点的 SSID
* mac - 接入点的 BSSID/mac 地址
* channel - 使用的 wifi 信道（整数，典型值 1..14）
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