textbox输出的一个小问题

Question

int time=0;button1.Click事件
time++;
if(item==1)
textbox.Text=time;
else
textbox.Text=","+time;

Answer 1

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 WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        private static int i = 0;
        public Form1()
        {
            InitializeComponent();
        }        private void button1_Click(object sender, EventArgs e)
        {
            i++;
            if (i <= 1)
            {
                textBox1.Text += i;
            }
            else textBox1.Text += "," + i;
        }
    }
}
方法千百种，LZ可以自己思考