c# - C#创建文件夹时添加数字后缀

Question

如果我想创建的文件夹已经存在，我正在尝试处理..向文件夹名称添加一个数字..就像Windows资源管理器..例如(新文件夹，新文件夹1，新文件夹2 ..)我怎样才能递归地做我知道这段代码是错误的。我该如何修复或更改下面的代码来解决问题？

    int i = 0;
    private void NewFolder(string path)
    {
        string name = "\\New Folder";
        if (Directory.Exists(path + name))
        {
            i++;
            NewFolder(path + name +" "+ i);
        }
        Directory.CreateDirectory(path + name);
    }

Answer 1

为此，您不需要递归，而是应该寻求迭代解决方案:

private void NewFolder(string path) {
    string name = @"\New Folder";
    string current = name;
    int i = 1;
    while (Directory.Exists(Path.Combine(path, current))) {
        i++;
        current = String.Format("{0}{1}", name, i);
    }
    Directory.CreateDirectory(Path.Combine(path, current));
}