📄 5-5.txt
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using System;
class Test
{
static void Swap(string x,string y)
{
string temp = x;
x = y;
y = temp;
}
static void Main()
{
string i = "1", j = "2";
Swap(i,j);
Console.WriteLine("i = {0}, j = {1}", i, j);
Console.ReadLine();
}
}
程序经编译后执行输出:
i = 1, j = 2;
using System;
class Test
{
static void Swap(ref string x,ref string y)
{
string temp = x;
x = y;
y = temp;
}
static void Main()
{
string i = "1", j = "2";
Swap(ref i,ref j);
Console.WriteLine("i = {0}, j = {1}", i, j);
Console.ReadLine();
}
}
程序经编译后执行输出:
i = 2, j = 1
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