62,634
社区成员




public class shishi
{
public static void main (String args[])
{
String ss = "123";
System.out.println(ss);
fun(ss);
System.out.println(ss);
}
public static void fun(String s)
{
s = "asd"; //为什么不在原内存地址修改内容,而要新开辟内存空间再改变指向?
}
}
#include "stdafx.h"
#include <iostream>
#include <string>
using namespace std;
void fun(string &s)
{
s = "asd";
}
int _tmain(int argc, _TCHAR* argv[])
{
string ss = "123";
cout<<ss<<endl;
fun(ss);
cout<<ss;
return 0;
}