如果是带有C#的DirectorySeparatorChar,请删除最后一个字符

Question

我需要使用提取路径信息Path.GetFileName(),当输入字符串的最后一个字符是DirectorySeparatorChar('/'或'\')时,此函数不起作用.

我提出了这个代码,但它太长了.还有更好的方法吗？

string lastCharString = fullPath.Substring (fullPath.Length-1);
char lastChar = lastCharString[0];

if (lastChar == Path.DirectorySeparatorChar) {
    fullPath = fullPath.Substring(0, fullPath.Length-1);
}

Answer 1

fullPath = fullPath.TrimEnd(Path.DirectorySeparatorChar);

Answer 2

// If the fullPath is not a root directory
if (Path.GetDirectoryName(fullPath) != null)
    fullPath = fullPath.TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);