如何检查文件名是否包含整个文件名中的某些字符串值

Question

I have a File names of around 37k and have 8k of string array. i want to check each individual string in an array is present in those File name and it should return that file name. I have tried below code. But not getting the required answer.

  foreach (string result in DifferArray)
                {
                 var res =   result ;
                 var results = files.Contains(res);

                 if (results == true)
                 {

                 }
                 else
                 { 

                 }
                }
              }

我附上了下面的文件名图片

for example if res has a value of '000000000000000100108979' and filename contain this then it should return the file name.

Answer 1

一个快速的解决方案可能是：

var results = files.Any(r => r.IndexOf(res) >= 0);

那是因为 Contains 搜索匹配的字符串，而不仅仅是它的一部分。
可以优化算法并尝试其他方法，但这只是一个简单的修复。

根据操作请求进行编辑
要获取文件名，您可以使用：

var filename = files.FirstOrDefault(r => r.IndexOf(res) >= 0);
if (string.IsNullOrEmpty(filename)) {
  // NOT FOUND
} else {
  // Filename contains your full filename
}

如何检查文件名是否包含整个文件名中的某些字符串值

How to check whether the file name contains some strings values in entire file name

.net

c#

console-application