c#新手求解 读取文件

Question

我想获得web.config中的这个password的值。如何实现呢？
<appSettings>
    <add key="ChartImageHandler" value="storage=file;timeout=20;dir=c:\TempImageFiles\;" />
  </appSettings>  <connectionStrings>
    <add name="DB_CON" connectionString="Data Source=212.168.1.166;Initial Catalog=DB_SPL;Persist Security Info=True;User ID=sa;pwd=123456" />
    <add name="DB_SPLConnectionString" connectionString="Data Source=212.168.1.166;Initial Catalog=DB_SPL;User ID=sa;Password=123456"
      providerName="System.Data.SqlClient" />
  </connectionStrings>
  <system.web>

Answer 1

protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            string...                  }

Answer 2

       public static string GetDBPassword()
       {
           string conn = ConfigurationManager.ConnectionStrings["DB_CON"].ConnectionString as string;
           Match mat = Regex.Match(conn, @"pwd=\w*\d*\W*");
           return conn=mat.Groups[0].Value;
       }

Answer 3

    @"[pwd]+=(\w*\d*\W*)"        mat.Groups[1].Value;我想了一下这样更靠谱，如果输入的是password的时候也适合。输出为123456

Answer 4

ConfigurationManager.ConnectionStrings["DB_CON"].ConnectionString as string;