Question

我的以下代码的迭代链接遇到“'NoneType'对象不可迭代”错误。有人可以帮忙吗？

 private DataTable CSToDataTable(string csvfile)
    {
        Int64 row = 0;
        try
        {

            string CSVFilePathName = csvfile; //@"C:\test.csv";
            string[] Lines = File.ReadAllLines(CSVFilePathName.Replace(Environment.NewLine, ""));
            string[] Fields;
            Fields = Lines[0].Split(new char[] { ',' });
            int Cols = Fields.GetLength(0);
            DataTable dt = new DataTable();
            //1st row must be column names; force lower case to ensure matching later on.
            for (int i = 0; i < Cols; i++)
                dt.Columns.Add(Fields[i].ToLower(), typeof(string));
            DataRow Row;
            for (row = 1; row < Lines.GetLength(0); row++)
            {
                Fields = Lines[row].Split(new char[] { ',' });
                Row = dt.NewRow();
                //Console.WriteLine(row);
                for (int f = 0; f < Cols; f++)
                {
                    Row[f] = Fields[f];
                }
                dt.Rows.Add(Row);
                if (row == 190063)
                {
                }
            }
            return dt;
        }
        catch (Exception ex)
        {
            throw ex;
        }
    }

Answer 1

您应在for循环中使用tree.iterlinks()：

for i in tree.iterlinks():
    print(i)

输出：

(<Element style at 0x7f9e6e41ca48>, None, '/images/nav_logo229.png', 1054)
(<Element link at 0x7f9e6e406db8>, 'href', '/images/branding/product/ico/googleg_lodp.ico', 0)
...

获取“ eronelinks”的“ NoneType”对象不可迭代”错误

1 个答案: