VS2019通过C语言直接调用PYTHON库 - 工控编程吧

from gettext import gettext
import easyocr
# 结果为rect,文本，可信度 [([[189, 75], [469, 75], [469, 165], [189, 165]], '愚园路', 0.3754989504814148) ]
# result = reader.readtext('d:/1.bmp') #
# 结果为简单的字符数组,如['愚园路', '西', '东', '315', '309', 'Yuyuan Rd.', 'W', 'E'];
# result = reader.readtext('d:/1.bmp', detail=0, paragraph=True)
# file = open('C:/Users/baikhgmv/Desktop/' + 'new' + '.txt', 'w')
# file.close()
# print(result)
# gettext(message=1)
reader = easyocr.Reader(['ch_sim', 'en'], gpu=False) # 仅需初始化一次;
def typeof(variate):
variate_type = None
if isinstance(variate, int):
variate_type = "int"
elif isinstance(variate, str):
variate_type = "str"
elif isinstance(variate, float):
variate_type = "float"
elif isinstance(variate, list):
variate_type = "list"
elif isinstance(variate, tuple):
variate_type = "tuple"
elif isinstance(variate, dict):
variate_type = "dict"
elif isinstance(variate, set):
variate_type = "set"
return variate_type
def com(s):
print(s)
rst = '123'
return rst
def ocr(filepath):
rst = reader.readtext(filepath, detail=0, paragraph=True)
print(typeof(rst))
print(rst)
return rst

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#include "stdio.h"
#include "stdlib.h"
//#include "detect_text.h"
//#pragma comment(lib,"OCRDLL.lib")
#include <string>
#include <Python.h>
#include<iostream>
#include<Windows.h>
using namespace std;
wchar_t* utf_8ToUnicode(const char* u8s)
{
int wcsLen = MultiByteToWideChar(CP_UTF8, NULL, u8s, (int)strlen(u8s), NULL, NULL)+1;
wchar_t* wcString = new wchar_t[wcsLen];
ZeroMemory(wcString, wcsLen);
MultiByteToWideChar(CP_UTF8, NULL, u8s, (int)strlen(u8s), wcString, wcsLen);
return wcString;
}
char* unicodeToAnsi(wchar_t* wcString)
{
int len = WideCharToMultiByte(CP_ACP, NULL, wcString, -1, NULL, NULL, NULL, NULL)+1;
char* str = new char[len];
ZeroMemory(str, len);
WideCharToMultiByte(CP_ACP, NULL, wcString, -1, str, len, NULL, NULL);
return str;
}
int main()
{
//<>初始化python模块
Py_SetPythonHome(L"D:\\ProgramData\\Anaconda3\\envs\\easyocr");
Py_Initialize();
if (!Py_IsInitialized())
{
cout << "初始化失败" << endl;
Py_Finalize();
return 0;
}
PyRun_SimpleString("import sys");
PyRun_SimpleString("sys.path.append('./')");//设置python模块搜寻位置，文件放在.cpp文件一起
PyObject* pModule = NULL;
PyObject* pFunc = NULL;
PyObject* pArg = NULL;
pModule = PyImport_ImportModule("ocr");//Python文件名
if (!pModule)
{
cout << "py文件导入失败" << endl;
}
else
{
pFunc = PyObject_GetAttrString(pModule, "ocr");//Python文件中的函数名
if (!pFunc)
{
cout << "函数导入失败" << endl;
Py_Finalize();
}
PyObject* pyParams = Py_BuildValue("(s)", "D:\\1.bmp");//c++类型转python类型
pArg = PyEval_CallObject(pFunc, pyParams);//调用函数
if (PyList_Check(pArg))
{
PyObject* list_item = NULL;
char* pStr = NULL;//c类型的列表元素
for (int sb=0; sb < PyObject_Size(pArg); sb++)
{
//根据下标取出python列表中的元素,再转为字符串;
list_item = PyList_GetItem(pArg, sb);
PyArg_Parse(list_item, "s", &pStr);
//python3默认为utf8编码,将其转为ansi,正常显示结果;
wchar_t* p = NULL;
char* p2 = NULL;
p = utf_8ToUnicode(pStr);
p2 = unicodeToAnsi(p);
cout << p2 << "\r\n" << endl;
//
if (p)
delete[]p;
if (p2)
delete[]p2;
}
}
}
char a = getchar();
Py_Finalize();
return 0;
}

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D:\ProgramData\Anaconda3\envs\easyocr\lib\site-packages\numpy\__init__.py:138: UserWarning: mkl-service package failed to import, therefore Intel(R) MKL initialization ensuring its correct out-of-the box operation under condition when Gnu OpenMP had already been loaded by Python process is not assured. Please install mkl-service package, see http://github.com/IntelPython/mkl-service
from . import _distributor_init
py文件导入失败

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