delphi调用python dll
时间: 2023-08-10 13:05:55 浏览: 171
可以通过以下步骤在 Delphi 中调用 Python DLL:
1. 在 Delphi 中创建一个新的 DLL 项目。
2. 在项目中添加一个 import unit,用于导入 Python DLL 中的函数。如下所示:
```
unit PythonDLL;
interface
type
PPyObject = Pointer;
function Py_Initialize: Integer; cdecl;
function Py_Finalize: Integer; cdecl;
function PyRun_SimpleString(const ACode: PAnsiChar): Integer; cdecl;
function PyRun_String(const ACode: PAnsiChar; AMargin: Integer; const AGlobals, ALocals: PPyObject): PPyObject; cdecl;
implementation
const
PythonDLL = 'python27.dll';
function Py_Initialize; external PythonDLL;
function Py_Finalize; external PythonDLL;
function PyRun_SimpleString; external PythonDLL;
function PyRun_String; external PythonDLL;
end.
```
3. 在 Delphi 代码中调用 Python DLL 中的函数。例如,可以使用以下代码来运行 Python 代码:
```
uses
PythonDLL;
procedure RunPythonCode(const ACode: string);
begin
Py_Initialize;
try
PyRun_SimpleString(PAnsiChar(AnsiString(ACode)));
finally
Py_Finalize;
end;
end;
```
4. 在 Delphi 界面上添加一个按钮等控件,用于触发调用 Python DLL 的代码。
注意:在调用 Python DLL 的函数之前,必须先初始化 Python 解释器,否则会出现错误。在调用完成后,还需要清理 Python 解释器。
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