FT质押挖矿DAPP系统开发详情(现成案例搭建)

简介: 区块链是安全性和去中心化水平都极高的网络,人们可以在一个共享账本中储存数据、交换价值并记录交易活动,而且这个账本不受任何中心化实体控制。

区块链是安全性和去中心化水平都极高的网络,人们可以在一个共享账本中储存数据、交换价值并记录交易活动,而且这个账本不受任何中心化实体控制。区块链网络是Web3的支柱,提供了安全的执行层,可以在其中创建、发行并交易加密资产,并且开发可编程的智能合约。176智能合约0206系统开发5616

  

  智能合约是基于区块链的,同时其本质是一系列代码的合集,用于自动完成某些特定的功能。由于Web 3.0网络将通过去中心化协议运行,它们将通过智能合约实现互操作、无缝集成、自动化,我们可以看到这两者之间的强大融合和共生关系。

  

  #Build model

  

  print('-->Building model')

  

  ret=rknn.build(do_quantization=True,dataset='dataset.txt')#,pre_compile=True

  

  if ret!=0:

  

  print('Build hrnet_w32_macaque_256x192-f7e9e04f_20210407 failed!')

  

  exit(ret)

  

  print('done')

  

  #Export rknn model

  

  print('-->Export RKNN model')

  

  ret=rknn.export_rknn(RKNN_MODEL)

  

  if ret!=0:

  

  print('Export hrnet_w32_macaque_256x192-f7e9e04f_20210407_sim.rknn failed!')

  

  exit(ret)

  

  print('done')

  

  rknn.release()

  

  def bbox_xywh2cs(bbox,aspect_ratio,padding=1.,pixel_std=200.):

  

  """Transform the bbox format from(x,y,w,h)into(center,scale)

  

  Args:

  

  bbox(ndarray):Single bbox in(x,y,w,h)

  

  aspect_ratio(float):The expected bbox aspect ratio(w over h)

  

  padding(float):Bbox padding factor that will be multilied to scale.

  

  Default:1.0

  

  pixel_std(float):The scale normalization factor.Default:200.0

  

  Returns:

  

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