金额 格式化转换字符串

lblText.Text = string.Format("{0:C2}", 12.345);            //￥12.35

       Object d = new Object();

       d = "12.345";

       lblText.Text = String.Format("{0:C2}", d);                  //12.345
       lblText.Text = String.Format("{0:C2}", d.ToString());       //12.345

       Object c = new Object();
       c = 12.345;
       lblText.Text = String.Format("{0:C2}", c);                 //￥12.35
       lblText.Text = String.Format("{0:C2}", c.ToString());      //12.345