1. 获取绝对文件路径
system.io.path.getfullpath(string path)
string filename = "myfile.ext";
string path1 = @"mydir";
string path2 = @"\mydir";
string fullpath;
fullpath = path.getfullpath(path1);
fullpath = path.getfullpath(filename);
fullpath = path.getfullpath(path2);
2. 获取文件名字(得到指定路径内的文件名,不包括扩展名)
system.io.path.getfilenamewithoutextension(string path)
string filename = @"c:\mydir\myfile.ext";
string path = @"c:\mydir\";
string result;
result = path.getfilenamewithoutextension(filename);
result = path.getfilename(path);
3.获得包含 path 目录信息的string 或者为空引用
system.io.path.getdirectoryname(string path)
string filename = @"c:\mydir\myfile.ext";
string path = @"c:\mydir\";
string rootpath = @"c:\";
string directoryname;
directoryname = path.getdirectoryname(filename);
directoryname = path.getdirectoryname(path);
directoryname = path.getdirectoryname(rootpath);
4.合并两个路径字符串。
system.io.path.combine(string path1, string path2)
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