解决c++调用python中文乱码问题

曾经终败给现在 2022-12-25 00:57 218阅读 0赞

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windows中文操作系统下，vs的c++项目默认编码是GB2312

python默认是utf-8编码

最好在c++程序顶上加：

\#pragma execution\_character\_set("GB2312")

c++中的字符串一定就是gbk编码

传入python前要做编码转换

准备一个gbk转utf8的函数，如下（网上的）：

string GbkToUtf8(const char* src_str)
        {
          int len = MultiByteToWideChar(CP_ACP, 0, src_str, -1, NULL, 0);
          wchar_t* wstr = new wchar_t[len + 1];
          memset(wstr, 0, len + 1);
          MultiByteToWideChar(CP_ACP, 0, src_str, -1, wstr, len);
          len = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
          char* str = new char[len + 1];
          memset(str, 0, len + 1);
          WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, len, NULL, NULL);
          string strTemp = str;
          if (wstr) delete[] wstr;
          if (str) delete[] str;
          return strTemp;
        }

示例性代码：

#pragma execution_character_set("GB2312")
    #include <stdlib.h>
    #include <Windows.h>   
    #include <iostream>
    #include <Python.h>
    #include <string>
    #include <atlstr.h>

using namespace System;  
using namespace System::Runtime::InteropServices;  
using namespace System::Collections::Generic;  
using namespace System::Diagnostics;  
using namespace System::Threading;  
using namespace std;

int main()  
\{  
const char\* name = “东方红1号”;  
Py\_Initialize();//初始化python  
PyRun\_SimpleString(“import sys”);  
PyRun\_SimpleString(“sys.path.append(’./’)”);  
PyObject\* pModule = PyImport\_ImportModule(“hello”);  
PyObject\* pFunc1 = PyObject\_GetAttrString(pModule, “sayhello”);  
PyObject\* pArgs = PyTuple\_New(1);  
PyObject\* pV1 = Py\_BuildValue(“s”, GbkToUtf8(name).c\_str());  
PyTuple\_SetItem(pArgs, 0, pV1);  
PyObject\* result = PyObject\_CallObject(pFunc1, pArgs);  
Py\_Finalize();  
return 0;

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