C#字符串数组排序

//排序只带字符的数组，不带数字的

private   string[]   aa   ={ "a ", "c ", "b "}; 

Array.Sort(aa); 

    MessageBox.Show(aa[0]); 

    MessageBox.Show(aa[1]); 

    MessageBox.Show(aa[2]); 



结果是：a,b,c

如果想实现

Array.Sort(arr);
不对!!!!!!!!!!
比如:   A1,A2,A10
用Array.Sort(arr);排出来就是
A1,A10,A2
而我要的是
A1,A2,A10

这样就可以了： 

public   class   CustomComparer:System.Collections.IComparer 

{ 

public   int   Compare(object   x,   object   y){ 

string   s1   =   (string)x; 

string   s2   =   (string)y; 

if   (s1.Length   >   s2.Length)   return   1; 

if   (s1.Length   <   s2.Length)   return   -1; 

for   (int   i   =   0;   i   <   s1.Length;   i++)   { 

if   (s1[i]   >   s2[i])   return   1; 

if   (s1[i]   <   s2[i])   return   -1; 

} 

return   0; 

} 

} 



应用： 

string[]   str   =   new   string[]{ "A1 ", "A2 ", "A10 "}; 

Array.Sort(str,   new   CustomComparer()); 

for   (int   i   =   0;   i   <   str.Length;   i++) 

Console.WriteLine(str[i]);

 但是这样不对带有字符的字符排序。