function batchTransferVoken(address from,address caddress,address[] _to,uint256[] value)public returns (bool){
        require(_to.length > 0);
        bytes4 id=bytes4(keccak256("transferFrom(address,address,uint256)"));
        for(uint256 i=0;i<_to.length;i++){
            caddress.call(id,from,_to[i],value[i]);
        }
        return true;
    }