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gbTurntable.init({
    id: 'turntable',
    config: function(callback){
        // 获取奖品信息
        callback && callback(['1元红包','2元红包','3元红包','4元红包','5元红包','6元红包']);    
    },
    getPrize: function(callback) {
        // 获取中奖信息
        var num = Math.random() * 6 >>> 0,   //奖品ID
            chances = num;  // 可抽奖次数
            callback && callback([num, chances]);   
    },
    gotBack: function(data) {
        alert('恭喜抽中' + data);
    }
});