使用關(guān)鍵字ref 實現(xiàn)值類型傳參,轉(zhuǎn)換成引用類型傳參,但是需要在參數(shù)前和調(diào)用前都加上ref關(guān)鍵字
2018-01-23
//按引用傳遞參數(shù),方法修改形參,通常實參也會被修改
//按值傳遞參數(shù),方法修改形參,實參不會被修改
//按值傳遞參數(shù),方法修改形參,實參不會被修改
2018-01-23
public int add(int i1 , int i2)
{
int sum = i1 + i2;
return sum;
}
{
int sum = i1 + i2;
return sum;
}
2018-01-20
public void Eat()
{
Console.WriteLine("Eat run ing ....");
}
public void Eat(string name)
{
if (name == null)
{
Child c = new Child();
c.Eat();
}
else
{
Console.WriteLine("呵呵噠,{0}",name);
}
}
{
Console.WriteLine("Eat run ing ....");
}
public void Eat(string name)
{
if (name == null)
{
Child c = new Child();
c.Eat();
}
else
{
Console.WriteLine("呵呵噠,{0}",name);
}
}
2018-01-20