摘要：
public string ergodicPath(string path,string fileExtension,out string filename) { DirectoryInfo TheFolder=new DirectoryInfo(path); foreach (FileInfo fi in TheFolder.GetFiles())//先遍历当前目录，在遍历文件夹的每个目录 { if (fi.Extension == fileExtension) { filename = fi.Name; return fi.DirectoryName; } } DirectoryInfo. 阅读全文