我有问题。我需要根据模板订购C#List<string>
,但模板只包含字符串的一部分,因此它必须是Contains()
。
模板类似于:
House
Vehicle
Electric
和输入类似:
Electric bike
Household appliances
Electricity
Electric generator
Vehicle appliances
并且有序列表应该是:
Household appliances
Vehicle appliances
Electric bike
Electricity
Electric generator
有什么可以帮助我吗?
答案 0 :(得分:1)
您必须实现自定义比较器
public class CustomStringComparer : IComparer<string>
{
List<string> templates = new List<string> { "House", "Vehicle", "Electric" };
public int Compare(string x, string y)
{
string xTemplate = templates.FirstOrDefault(t => x.Contains(t));
string yTemplate = templates.FirstOrDefault(t => y.Contains(t));
int xTemplateIndex = templates.IndexOf(xTemplate);
int yTemplateIndex = templates.IndexOf(yTemplate);
return xTemplateIndex.CompareTo(yTemplateIndex);
}
}
然后你可以把这个比较器传递给Sort()
List<string> input = new List<string>
{
"Electric bike",
"Household appliances",
"Electricity",
"Electric generator",
"Vehicle appliances"
};
input.Sort(new CustomStringComparer());