Go语言练习：go语言与C语言的交互——cgo

1、代码

package main

import "fmt"
/*
#include <stdlib.h>
#include <stdio.h>
void hello()
{
    printf("Hello World !\n");
}
*/
import "C"

func Hello() {
    C.hello();
}


func Random() int {
    return int(C.random())
}

func Seed(i int) {
    C.srandom(C.uint(i))
}

func main () {
    Seed(100)
    fmt.Println("Random:", Random())
    Hello()
}

2、运行结果

$ go run cgo.go 
Random: 677741240
Hello World !