去除末尾字符

String two = "dell.lnk";
String[] arr2 = new string[3];
//注:结果为de, trimend会删除结尾中包含.lnk这四个字母的字符,没有顺序
arr2[0] = two.TrimEnd(".lnk".ToCharArray());    
arr2[1] = two.Replace(".lnk", "");
Console.WriteLine("TrimEnd Test:");
Console.WriteLine("Old  : {0}", two);
for (int i = 0; i < arr2.Length; i++)
{
    Console.WriteLine("Way {0}: {1}", (i + 1), arr2[i]);
}
String oldstr = "a,b,c,d,";
String[] arr = new string[5];
arr[0]= oldstr.Trim(',');
arr[1] = oldstr.TrimEnd(',');
arr[2] = oldstr.Remove(oldstr.Length - 1);
arr[3] = oldstr.EndsWith(",") ? oldstr.Substring(0, oldstr.Length - 1) : oldstr;
Console.WriteLine("--------------------------");
Console.WriteLine("Old  : {0}",oldstr);
for (int i = 0; i < arr.Length;i++ )
{
    Console.WriteLine("Way {0}: {1}",(i+1),arr[i]);
}
Console.ReadLine();

总结:

1.去除末尾单个字符, 最好是TrimEnd;

2.去除末尾多个字符, 那一定要用substring, replace(如果不能确保只匹配末尾的话, 也不可靠)