Go 言語の比較 C++ 参照パラメータの受け渡し

#include <iostream>
//值传递
void func1(int a) {
  std::cout << "值传递，变量地址：" << &a << ", 变量值：" << a << std::endl;
  a ++ ;
}
//指针传递
void func2 (int* a) {
  std::cout << "指针传递，变量地址：" << a << ", 变量值：" << *a << std::endl;
  *a = *a + 1;
}
//引用传递
void func3 (int& a) {
  std::cout << "指针传递，变量地址：" << &a << ", 变量值：" << a << std::endl;
  a ++;
}
int main() {
  int a = 5;
  std::cout << "变量实际地址：" << &a << ", 变量值：" << a << std::endl;
  func1(a);
  std::cout << "值传递操作后,变量值：" << a << std::endl;
  std::cout << "变量实际地址：" << &a << ", 变量值：" << a << std::endl;
  func2(&a);
  std::cout << "指针传递操作后,变量值：" << a << std::endl;
  std::cout << "变量实际地址：" << &a << ", 变量值：" << a << std::endl;
  func3(a);
  std::cout << "引用传递操作后,变量值：" << a << std::endl;
  return 0;
}

package main
import (
  "fmt"
)
func main() {
  a := 1
  fmt.Println( "变量实际地址:", &a, "变量值:", a)
  func1 (a)
  fmt.Println( "值传递操作后,变量值:", a)
  fmt.Println( "变量实际地址:", &a, "变量值:", a)
  func2(&a)
  fmt.Println( "指针传递操作后,变量值:", a)
}
//值传递
func func1 (a int) {
  a++
  fmt.Println( "值传递，变量地址:", &a, "变量值:", a)
}
//指针传递
func func2 (a *int) {
  *a = *a + 1
  fmt.Println( "指针传递，变量地址:", a, "变量值:", *a)
}

package main
import (
  "fmt"
)
func main() {
  m1 := make([]string, 1)
  m1[0] = "test"
  fmt.Println("调用 func1 前 m1 值:", m1)
  func1(m1)
  fmt.Println("调用 func1 后 m1 值:", m1)
}
func func1 (a []string) {
  a[0] = "val1"
  fmt.Println("func1中:", a)
}

  package main
import (
  "fmt"
)
func main() {
  m1 := make([]string, 1)
  m1[0] = "test"
  fmt.Println("调用 func1 前 m1 值:", m1, cap(m1))
  func1(m1)
  fmt.Println("调用 func1 后 m1 值:", m1, cap(m1))
}
func func1 (a []string) {
  a = append(a, "val1")
  fmt.Println("func1中:", a, cap(a))
}