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//手动保存图片
private void saveBtn_Click(object sender, System.EventArgs e)
{
bool isSave = true;
SaveFileDialog saveImageDialog = new SaveFileDialog();
saveImageDialog.Title = "图片保存";
saveImageDialog.Filter= @"jpeg|*.jpg|bmp|*.bmp|gif|*.gif";
if(saveImageDialog.ShowDialog() == DialogResult.OK)
{
string fileName = saveImageDialog.FileName.ToString();
if(fileName != "" && fileName != null)
{
string fileExtName = fileName.Substring(fileName.LastIndexOf(".")+1).ToString();
System.Drawing.Imaging.ImageFormat imgformat = null;
if(fileExtName!="")
{
switch(fileExtName)
{
case "jpg":
imgformat = System.Drawing.Imaging.ImageFormat.Jpeg;
break;
case "bmp":
imgformat = System.Drawing.Imaging.ImageFormat.Bmp;
break;
case "gif":
imgformat = System.Drawing.Imaging.ImageFormat.Gif;
break;
default:
MessageBox.Show("只能存取为: jpg,bmp,gif 格式");
isSave = false;
break;
}
}
//默认保存为JPG格式
if(imgformat == null)
{
imgformat = System.Drawing.Imaging.ImageFormat.Jpeg;
}
if(isSave)
{
try
{
this.pictureBox1.Image.Save(fileName,imgformat);
//MessageBox.Show("图片已经成功保存!");
}