标签:type stream share lib types library ++ python class
/***gcc -o libpycall.so -shared -fPIC pycall.c*/ #include <stdio.h> #include <stdlib.h> int foo(int a, int b) { printf("you input %d and %d\n", a, b); return a+b; }
Python调用动态库的文件:pycall.py
import ctypes ll = ctypes.cdll.LoadLibrary lib = ll("./libpycall.so") lib.foo(1, 3) print ‘***finish***‘
需要extern "C"来辅助,也就是说还是只能调用C函数,不能直接调用方法,但是能解析C++方法。不是用extern "C",构建后的动态链接库没有这些函数的符号表。
#include <iostream> using namespace std; class TestLib { public: void display(); void display(int a); }; void TestLib::display() { cout<<"First display"<<endl; } void TestLib::display(int a) { cout<<"Second display:"<<a<<endl; } extern "C" { TestLib obj; void display() { obj.display(); } void display_int() { obj.display(2); } }
g++编译生成动态库libpycall.so:g++ -o libpycallclass.so -shared -fPIC pycallclass.cpp。
Python调用动态库的文件:pycallclass.py
import ctypes so = ctypes.cdll.LoadLibrary lib = so("./libpycallclass.so") print ‘display()‘ lib.display() print ‘display(100)‘ lib.display_int(100)
转载:http://blog.csdn.net/taiyang1987912/article/details/44779719
标签:type stream share lib types library ++ python class
原文地址:http://www.cnblogs.com/mypsq/p/6114838.html