python导入包的一些问题

1.导入so文件

from ctypes import cdll
so_lib_path = './c_program.so'
so_lib = cdll.LoadLibrary(so_lib_path)
# 直接用方法名调用
so_lib.display("hello, I am calling a so file.")
print("3 + 5 = {}".format(so_lib.add(3, 5)))

2.