我有一个代码可以很好地比较字符串列表,如下所示。现在我想将其转换为泛型,我已经尝试将相同的代码转换为泛型,但我遇到了错误,尽管有许多尝试纠正它。由于我是仿制药的新手,我需要专家的手来指导我做错的事。
public class BaseComparer<T> : IComparer<T>, IDisposable where T : IBaseComparer<T>
{
private Dictionary<T, T[]> Value;
public BaseComparer()
{
Value = new Dictionary<T, T[]>();
}
public int Compare(T lhs, T rhs)
{
if (lhs.Equals(rhs))
return 0;
T[] strFirst, strSecond;
if (!Value.TryGetValue(lhs, out strFirst))
{
strFirst = Regex.Split(lhs.ToString().Replace(" ", ""), "([0-9]+)");
strFirst = Regex.Split(lhs.ToString().Replace("|", ">>"), "([0-9]+)");
Value.Add(lhs, strFirst);
}
if (!Value.TryGetValue(rhs, out strSecond))
{
strSecond = Regex.Split(rhs.ToString().Replace(" ", ""), "([0-9]+)");
strSecond = Regex.Split(rhs.ToString().Replace("|", ">>"), "([0-9]+)");
Value.Add(rhs, strSecond);
}
for (int i = 0; i < strFirst.Length && i < strSecond.Length; i++)
{
if (!strFirst[i].Equals(strSecond[i]))
{
return Splitcompare(strFirst[i], strSecond[i]);
}
}
if (strSecond.Length > strFirst.Length)
{
return 1;
}
else if (strFirst.Length > strSecond.Length)
{
return -1;
}
else
{
return 0;
}
}
private static int Splitcompare(string left, string right)
{
int x, y;
if (!int.TryParse(left.ToString(), out x))
{
return left.CompareTo(right);
}
if (!int.TryParse(right.ToString(), out y))
{
return left.CompareTo(right);
}
return x.CompareTo(y);
}
}
当我尝试在Regex线上使用Replace时,上面的代码给出了错误。原因是,我不能在T上使用字符串函数。
答案 0 :(得分:1)
Regex.Split()
会返回string[]
,但您已将strFirst
和strSecond
定义为通用参数类型T
。试试这个:
private Dictionary<T, string[]> Value;
public BaseComparer()
{
Value = new Dictionary<T, string[]>();
}
string[] strFirst, strSecond;
if (! Value.TryGetValue(lhs, out strFirst))
{
strFirst = Regex.Split(lhs.ToString().Replace(" ", ""), "([0-9]+)");
strFirst = Regex.Split(lhs.ToString().Replace("|", ">>"), "([0-9]+)");
Value.Add(lhs, strFirst);
}
if (! Value.TryGetValue(rhs, out strSecond))
{
strSecond = Regex.Split(rhs.ToString().Replace(" ", ""), "([0-9]+)");
strSecond = Regex.Split(rhs.ToString().Replace("|", ">>"), "([0-9]+)");
Value.Add(rhs, strSecond);
}