WF累加求和5

来源：互联网发布：手机淘宝微淘群在哪里编辑：程序博客网时间：2024/05/16 01:06

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace 累加求和{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void button1_Click(object sender, EventArgs e)        {            string str1 = textBox1.Text;            string str2 = textBox2.Text;            int m1, m2;            if (int.TryParse(str1, out m1) == false)            {                MessageBox.Show("数字1格式错误");                return;             }            if (!int.TryParse(str2, out m2))            {                MessageBox.Show("数字2格式错误");                return;            }            if(m1>=m2)            {                MessageBox.Show("第二个数要大于第一个数，请重新输入");                return;            }            int sum=0;           for( int n =m1;n<=m2;n++)           {               sum= sum+n;           }           textBox3.Text = Convert.ToString(sum);        }    }}

0 0