元祖排序 sorted(a, key=lambda item:item[1],reverse = True)
ubuntu
apt-get install libopenblas
export LD_LIBRARY_PATH=/usr/lib/openblas-base/
gcc -o test_cblas_open test_cblas_dgemm.c -I /your_path/OpenBLAS/include/ -L/your_path/OpenBLAS/lib -lopenblas -lpthread -lgfortran
python 调用java 包
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