_defineProperty(HTMLMediaElement.prototype, 'srcObject', {
输入：target = 12, position = [10,8,0,5,3], speed = [2,4,1,1,3]
，详情可参考safew官方版本下载
Once a transaction is confirmed, it is placed in a block after the confirmation. All of the blocks are chained together to create a permanent history of every transaction.
installations, you could expand a 3601 with additional local loop interfaces or