c#复制数组的多种方法

方法一:使用for循环
int []pins = {9,3,7,2}
int []copy = new int[pins.length];
for(int i =0;i!=copy.length;i++)
{
copy[i] = pins[i];
}

 

方法二:使用数组对象中的CopyTo()方法
int []pins = {9,3,7,2}
int []copy2 = new int[pins.length];
pins.CopyTo(copy2,0);

 

方法三:使用Array类的一个静态方法Copy()
int []pins = {9,3,7,2}
int []copy3 = new int[pins.length];
Array.Copy(pins,copy3,copy.Length);

 

方法四:使用Array类中的一个实例方法Clone(),可以一次调用,最方便,但是Clone()方法返回的是一个对象,所以要强制转换成恰当的类类型。
int []pins = {9,3,7,2}
int []copy4 = (int [])pins.Clone();

 

方法五:
string[] student1 = { "$", "$", "c", "m", "d", "1", "2", "3", "1", "2", "3" };
string[] student2 = { "0", "1", "2", "3", "4", "5", "6", "6", "1", "8", "16","10","45", "37", "82" };
ArrayList student = new ArrayList();    
foreach (string s1 in student1)
{
      student.Add(s1);                 
}
foreach (string s2 in student2)
{
      student.Add(s2);
}
string[] copyAfter = (string[])student.ToArray(typeof(string));

 

posted @ 2014-11-19 11:52  fish7  阅读(344)  评论(0编辑  收藏  举报