$obj=new zqf();
        第一个参数是红包总额，第二个人参数红包数量，第三个参数默认代表拼手气红包，设置为1的话为普通红包
        拼手气红包
        $hongb= $obj->hongbao(10,8);或者$hongb= $obj->hongbao(10,8,0);返回数组为Array ( [0] => 1.33 [1] => 1.02 [2] => 1.28 [3] => 0.44 [4] => 1.37 [5] => 0.81 [6] => 1.81 [7] => 1.94 )
        普通红包，每个人数额一样设置第三个参数
        $hongb= $obj->hongbao(10,8,1);返回数组为Array ( [0] => 1.25 [1] => 1.25 [2] => 1.25 [3] => 1.25 [4] => 1.25 [5] => 1.25 [6] => 1.25 [7] => 1.25 )
        var_dump($hongb);