using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
OpenFileDialog OpenFileDialog1 = new OpenFileDialog();
OpenFileDialog1.Filter = "jpg文件(*.jpg)|*.jpg|bmp文件(*.bmp)|*.bmp|ico文件(*.ico)|*.ico|png文件(*.png)|*.png|gif文件(*.gif)|*.gif";
if (OpenFileDialog1 .ShowDialog() == DialogResult.OK)
{ Bitmap image = new Bitmap(OpenFileDialog1 .FileName);
pictureBox1.Image = image;
}
}
private void button2_Click(object sender, EventArgs e)
{
if(pictureBox1.Image==null)
{
MessageBox.Show("没有加载图片", "错误!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}
else
{
string str;
Bitmap box1 = new Bitmap(pictureBox1.Image);
SaveFileDialog SaveFileDialog1 = new SaveFileDialog();
SaveFileDialog1.Filter = "jpg文件(*.jpg)|*.jpg|bmp文件(*.bmp)|*.bmp|ico文件(*.ico)|*.ico|png文件(*.png)|*.png|gif文件(*.gif)|*.gif";
SaveFileDialog1.ShowDialog();
str = SaveFileDialog1.FileName;
box1.Save(str);
}
}
}
}