功能:检测并识别二维码。
THIK:支持的二维码类型有:【 ‘Aztec Code’, ‘Data Matrix ECC 200’, ‘DotCode’, ‘GS1 Aztec Code’, ‘GS1 DataMatrix’, ‘GS1 DotCode’, ‘GS1 QR Code’, ‘Micro QR Code’, ‘PDF417’, ‘QR Code’】

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read_image (Image, 'C:/Users/19901/Desktop/DemoPic/qr1.png')
* 给定二维码类型并创建句柄
create_data_code_2d_model ('QR Code', [], [], DataCodeHandle)
* 检测并识别,结果字符串为DecodedDataStrings
find_data_code_2d (Image, SymbolXLDs, DataCodeHandle, [], [], ResultHandles, DecodedDataStrings)