c++引入pymysql文件
时间: 2023-08-31 18:10:47 浏览: 56
在C++中引入Python模块需要使用Python的C API。具体步骤如下:
1. 在C++中引入Python.h头文件。
```c++
#include <Python.h>
```
2. 初始化Python解释器。
```c++
Py_Initialize();
```
3. 导入pymysql模块。
```c++
PyObject* pymysql_module = PyImport_ImportModule("pymysql");
```
4. 获取pymysql模块中的函数或对象。
```c++
PyObject* pymysql_connect_func = PyObject_GetAttrString(pymysql_module, "connect");
```
5. 调用函数或使用对象。
```c++
PyObject* args = PyTuple_New(2);
PyTuple_SetItem(args, 0, PyUnicode_FromString("localhost"));
PyTuple_SetItem(args, 1, PyDict_New());
PyObject* pymysql_conn = PyObject_CallObject(pymysql_connect_func, args);
```
6. 释放Python对象和解释器。
```c++
Py_DECREF(pymysql_module);
Py_DECREF(pymysql_connect_func);
Py_DECREF(args);
Py_DECREF(pymysql_conn);
Py_Finalize();
```
完整的代码示例:
```c++
#include <Python.h>
int main()
{
Py_Initialize();
PyObject* pymysql_module = PyImport_ImportModule("pymysql");
PyObject* pymysql_connect_func = PyObject_GetAttrString(pymysql_module, "connect");
PyObject* args = PyTuple_New(2);
PyTuple_SetItem(args, 0, PyUnicode_FromString("localhost"));
PyTuple_SetItem(args, 1, PyDict_New());
PyObject* pymysql_conn = PyObject_CallObject(pymysql_connect_func, args);
Py_DECREF(pymysql_module);
Py_DECREF(pymysql_connect_func);
Py_DECREF(args);
Py_DECREF(pymysql_conn);
Py_Finalize();
return 0;
}
```