PHP/JAVA原生交易所系统开发详细案例丨交易所系统开发（逻辑方案）及成熟源码

　　狭义来讲，区块链是一种按照时间顺序将数据区块（什么是区块）以顺序相连的方式组合成的一种链式数据结构，并以密码学方式保证的不可篡改和不可伪造的分布式账本.

　　广义来讲，区块链技术是利用块链式数据结构来验证与存储数据、利用分布式节点共识算法来生成和更新数据、利用密码学的方式保证数据传输和访问的安全、利用由自动化脚本代码组成的智能合约来编程和操作数据的一种全新的分布式基础架构与计算范式.

　　区块链技术是构建价值互联网不可或缺的底层应用技术，是具备多级层和多类型应用的价值传输技术集合。它的本质是一种分布式数据库（注意：区块链与分布式数据库的差别），或者说是一个可共享且不易更改的分布式分类总账

void Calibration::_initMNNSession(const uint8_t* modelBuffer, const int bufferSize, const int channels) {
_interpreter.reset(MNN::Interpreter::createFromBuffer(modelBuffer, bufferSize));
MNN::ScheduleConfig config;
_session = _interpreter->createSession(config);
_inputTensor = _interpreter->getSessionInput(_session, NULL);

_inputTensorDims.resize(4);
auto inputTensorDataFormat = MNN::TensorUtils::getDescribe(_inputTensor)->dimensionFormat;
DCHECK(4 == _inputTensor->dimensions()) << "Only support 4 dimensions input";
if (inputTensorDataFormat == MNN::MNN_DATA_FORMAT_NHWC) {
    _inputTensorDims[0] = 1;
    _inputTensorDims[1] = _height;
    _inputTensorDims[2] = _width;
    _inputTensorDims[3] = channels;
} else if (inputTensorDataFormat == MNN::MNN_DATA_FORMAT_NC4HW4) {
    _inputTensorDims[0] = 1;
    _inputTensorDims[1] = channels;
    _inputTensorDims[2] = _height;
    _inputTensorDims[3] = _width;
} else {
    DLOG(ERROR) << "Input Data Format ERROR!";
}

if (_featureQuantizeMethod == "KL") {
    _interpreter->resizeTensor(_inputTensor, _inputTensorDims);
    _interpreter->resizeSession(_session);
} else if (_featureQuantizeMethod == "ADMM") {
    DCHECK((_imageNum * 4 * _height * _width) < (INT_MAX / 4)) << "Use Little Number of Images When Use ADMM";
    _inputTensorDims[0] = _imageNum;
    _interpreter->resizeTensor(_inputTensor, _inputTensorDims);
    _interpreter->resizeSession(_session);
}
_interpreter->releaseModel();

}