```
//挂载框架已封装好的第三方类，
//如EXCEL
$this->library("Excel");
$excel = new Excel();
$str = ["客户名称", "房源", "费用项", "费用周期(开始", "费用周期(结束)",
"逾期天数(天)", "应收金额(元)", "已收金额(元)"];
$excel->export($yuanquName, $yuanquName.date('Y-m-d'),$str, $data, "7,8");
//挂载控件类
$this->library("Component");
$ComponentClass = new Component();
//挂载短信类
$this->library("Sms");
$Sms = new Sms();
$Sms->lingkai("13320668037", "","验证码");
//挂载微信获取用户信息类
$this->library("WxGetUser");
$WxGetUser = new WxGetUser();
$WxGetUser->get_user_all();
```
