C# 给每两个字符串前加两个0

Question

例如
string a = "010513";
想输出 000100050013
谢谢

Answer 1

private void btnOk_Click(object sender, EventArgs e)
{
string strResult = null;
if (txtValue.Text == "")
return;
string strVaule = txtValue.Text;
List strList = new List();
while (strVaule.Length > 2)
{
string temp = strVaule.Substring(0, 2);
strList.Add(temp);
strVaule = strVaule.Substring(2, strVaule.Length - 2);
}
strList.Add(strVaule);

        foreach(string str in strList)
        {
            strResult += "00" + str;
        }

        lblResult.Text = strResult;
    }![图片说明](https://img-ask.csdn.net/upload/201610/18/1476755764_306415.jpg)