c#变量初始化
											struct customerName{
public string firstname,lastname;
public string name()
{
return firstname+""+lastname;
}
}
不是说在C#中 变量要经过声明和初始化才能使用的吗?但在这里为什么 变量firstname lastname没有初始化就能使用了呢?
菜鸟问题,多多指教 谢谢…………
 2007-02-12 13:28
	    2007-02-12 13:28
  不太明白
但是,我下面的程序没有初始化就会报错的.......
private void button5_Click(object sender, EventArgs e)
        {
            string firstname, lastname;
 
            firstname=firstname+""+lastname;
        }

 2007-02-12 13:46
	    2007-02-12 13:46
   2007-02-12 13:52
	    2007-02-12 13:52
   2007-02-12 15:33
	    2007-02-12 15:33
   2007-02-12 15:40
	    2007-02-12 15:40
   2007-02-12 15:44
	    2007-02-12 15:44
   2007-02-12 15:51
	    2007-02-12 15:51
  正解!!!
 2007-03-01 00:01
	    2007-03-01 00:01