$prizeArr = array(
'0' => array('id' => 1, 'prize' => '全英雄皮肤', 'v' => 1,'num'=>1),
'1' => array('id' => 2, 'prize' => '单英雄皮肤', 'v' => 2,'num'=>2),
'2' => array('id' => 3, 'prize' => '钻石1000', 'v' => 3,'num'=>2),
'3' => array('id' => 4, 'prize' => '钻石500', 'v' => 15,'num'=>3),
'4' => array('id' => 5, 'prize' => '金币100', 'v' => 20,'num'=>4),
'5' => array('id' => 6, 'prize' => '金币50', 'v' => 78,'num'=