test1.aspx.cs

互联网程序设计的课程

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class backup_test1 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void TextBox1_TextChanged(object sender, EventArgs e)
    { 
        float fNum1, fNum2, fResult;                    //声明3个单精度变量（过程级局部变量）

            fNum1 = float.Parse(TextBoxs1.Text);                  //将文本框中的字符串数据转换为单精度

            fNum2 = float.Parse(TextBoxs2 .Text);
        switch (RadioButtonList1.SelectedValue)
    {
        case "1":
 
            fResult = fNum1 + fNum2;                        //按预设执行加法运算
            Labeljg.Text = fResult.ToString();                   //将运算结果转换成字符串，并写入文本框
        

            break;
        case "2":

            fResult = fNum1 - fNum2;                        //按预设执行减法运算
            Labeljg.Text = fResult.ToString();                   //将运算结果转换成字符串，并写入文本框
 
            break;
        case "3":
  
            fResult = fNum1 *fNum2;                        //按预设执行乘法运算
            Labeljg.Text = fResult.ToString();                   //将运算结果转换成字符串，并写入文本框
   
            break;
        case "4":
          
            fResult = fNum1 / fNum2;                        //按预设执行除法运算
            Labeljg.Text = fResult.ToString();                   //将运算结果转换成字符串，并写入文本框
           

            break; 
        default:  break;
    }


}
}