详解Golang编译成DLL文件(2)-木庄网络博客

go build -ldflags "-s -w" -buildmode=c-shared -o func.dll func.go
还是有点大的，880KB，纯C 编译的只有48KB，应该是没有包含全部的依赖吧，go是全包进来了

Go 调用

package main
import (
    "fmt"
    "syscall"
)
 
func main() {
    dll := syscall.NewLazyDLL("func.dll")
    add := dll.NewProc("Add")
    prt := dll.NewProc("Print")
    r, err, msg := add.Call(32, 44)
    fmt.Println(r)
    fmt.Println(err)
    fmt.Println(msg)
     
    name := C.CString("Andy")
    prt.Call(uintptr(unsafe.Pointer(name)))
}

out:
76
0
The operation completed successfully.
Hello Andy

Python 调用

from ctypes import CDLL, c_char_p
dll = CDLL("func.dll")
dll.Add(32, 33)
dll.Print(c_char_p(bytes("Andy", "utf8")))

C++调用

#include <iostream>
#include <windows.h>
 
using namespace std;
typedef int(*pAdd)(int a, int b);
typedef void(*pPrt)(char* s);
 
int main(int argc, char *argv[])
{
    HMODULE dll= LoadLibraryA("func.dll");
    pAdd add = (pAdd)GetProcAddress(dll, "Add");
    pPrt prt = (pPrt)GetProcAddress(dll, "Print");
    cout << add(321, 33) << endl;
    prt("Andy");
    FreeLibrary(dll);
    return 0;
}