static void Main(string[] args)
{
int a = 5;
Console.WriteLine(a);
ShowDouble(a);
Console.WriteLine("方法:{0}", a); Console.ReadKey();
} static int ShowDouble(int val)
{
val*=2;
Console.WriteLine("ShowDouble{0}", val);
return val;
}为什么这个值 是5 阿?
{
int a = 5;
Console.WriteLine(a);
ShowDouble(a);
Console.WriteLine("方法:{0}", a); Console.ReadKey();
} static int ShowDouble(int val)
{
val*=2;
Console.WriteLine("ShowDouble{0}", val);
return val;
}为什么这个值 是5 阿?
static void Main(string[] args)
{
int[] a =new int[1];
a[0]=5;
Console.WriteLine(a[0]);
a=ShowDouble(a);
Console.WriteLine("方法:{0}", a[0]); Console.ReadKey();
} static int[] ShowDouble(int[] val)
{
val[0]*=2;
Console.WriteLine("ShowDouble{0}", val[0]);
return val;
}
方法有返回值,int b = ShowDouble(a);
Console.WriteLine("方法:{0}", b);