学步园

实现代码如下：

private
void button7_Click(object sender, EventArgs e) 
{
    string[] myStrs
= { "lihaoDaniu",
"lixiaodaoahenniubi", "nimeimeiLoveYou",
"iloveyousb", "good",
"giveme"
                          , "loveeeeeeeeeeeeeeeeee",
"shaa","bushi","String","liulongq","libo","hanleilei"
                          ,"nishi","geilibam","aobabaM","cheerUp","chili","zicox","zicoxNiubi","sunrayTest"
                      ,"henhao","nihao","woshiGehaoren","good","shabi","test","myString","loveLe","geili"};
    string myLen
= myStrs.Length.ToString();
    MessageBox.Show(myLen);
    IEnumerable<string> myName
= myStrs.Concat(myStrs);
    String str = myName.Count().ToString();
    MessageBox.Show("连接后的字符串长度"
+ str);
    IEnumerable<string> strAferDistinct
= myName.Distinct();
    string strN
= strAferDistinct.Count().ToString();
    MessageBox.Show("删除重复的元素后字符串长度为"
+ strN);
}