首先撰写 golang 程序 exportgo.go:
package main
import "C"
import "fmt"
//export PrintBye
func PrintBye() {
fmt.Println("From DLL: Bye!")
}
//export Sum
func Sum(a int, b int) int {
return a + b;
}
func main() {
// Need a main function to make CGO compile package as C shared library
}
编译成 DLL 文件:
go build -buildmode=c-shared -o exportgo.dll exportgo.go
编译后得到 exportgo.dll 和 exportgo.h 两个文件。
参考 exportgo.h 文件中的函数定义,撰写 C# 文件 importgo.cs:
using System;
using System.Runtime.InteropServices;
namespace HelloWorld
{
class Hello
{
[DllImport("exportgo.dll", EntryPoint="PrintBye")]
static extern void PrintBye();
[DllImport("exportgo.dll", EntryPoint="Sum")]
static extern int Sum(int a, int b);
static void Main()
{
Console.WriteLine("Hello World!");
PrintBye();
Console.WriteLine(Sum(33, 22));
}
}
}
编译 CS 文件得到 exe
csc importgo.cs
将 exe 和 dll 放在同一目录下,运行。
>importgo.exe
Hello World!
From DLL: Bye!
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