System.IO.FileInfo file = new System.IO.FileInfo(Application.StartupPath + "\\1.jpg");
if (file.Exists)
{
	file.Delete();
}




public static bool FilePicDelete(string path)
    {
        bool ret = false;
        System.IO.FileInfo file = new System.IO.FileInfo(path);
        if (file.Exists)//文件是否存在,存在则执行删除
        {
            file.Delete();
            ret = true;
        }
        return ret;
    }




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