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标题: C#代码片段集合-判断文件是否存在并删除&&C#代码查看本地图片大小KB,长宽比 [打印本页]

作者: cgq9845 时间: 2019-12-22 11:06
标题: C#代码片段集合-判断文件是否存在并删除&&C#代码查看本地图片大小KB,长宽比
本帖最后由 cgq9845 于 2019-12-22 16:45 编辑

//判断文件是否存在浏览器参数@stringDic["p_file"];格式D:\火车浏览器7.2\tup\1.jpg，，返回值stringDic["wenjianisexist"] 布尔值
//
public static void Execute(Dictionary<string, string> stringDic,Dictionary<string, List<string>> listDic, Dictionary<string, int> intDic)
      {
         string filelocation = @stringDic["p_file"];
         //检测是否存在
         bool exist= File.Exists(filelocation);
         stringDic["wenjianisexist"] = exist.ToString();

// 1、首先判断文件或者文件路径是否存在
if (File.Exists(filelocation))
{
// 2、根据路径字符串判断是文件还是文件夹
FileAttributes attr = File.GetAttributes(filelocation);
// 3、根据具体类型进行删除
if (attr == FileAttributes.Directory)
{
   // 3.1、删除文件夹
   Directory.Delete(filelocation, true);
}
else
{
   // 3.2、删除文件
   File.Delete(filelocation);
}
File.Delete(filelocation);
}

      }

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//判断文件是否存在浏览器参数@stringDic["p_file"];格式D:\火车浏览器7.2\tup\1.jpg，，返回值stringDic["wenjianisexist"] 布尔值
public static void Execute(Dictionary<string, string> stringDic,Dictionary<string, List<string>> listDic, Dictionary<string, int> intDic)
      {

         string filelocation = @stringDic["p_file"];
         //检测是否存在
         bool exist= File.Exists(filelocation);
         stringDic["wenjianisexist"] = exist.ToString();

      }
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//C#代码查看本地图片大小KB,长宽比

// @stringDic["V_PATH"];====D:\\xxxxx\\tup\\1.jpg------string file = @stringDic["V_PATH"] + @"pic\" + stringDic["p_file"];
public static void Execute(Dictionary<string, string> stringDic,Dictionary<string, List<string>> listDic, Dictionary<string, int> intDic)
{
      string file = @stringDic["V_PATH"];
      System.Drawing.Image localimage = System.Drawing.Image.FromFile(@file);
      stringDic["p_Width"] = localimage.Width.ToString();
      stringDic["p_Height"] = localimage.Height.ToString();
      FileInfo fileInfo = new FileInfo(@file);
      double length = Convert.ToDouble(fileInfo.Length);
      int Size = (int)length / 1024 ;
      stringDic["p_Size"] = Size.ToString();
      //MessageBox.Show(string.Format("File:{0},\n\rwidth:{1},\n\rheight:{2},\n\rSize:{3}",file, localimage.Width,localimage.Height,Size));
}

[attach]702[/attach]
["V_PATH"] 这些是浏览器的变量。格式为stringDic["*******"];
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///获取指定文件夹下的所有文件的文件名String path = @"D:\xxxx\tup";注意路径不能含有中文，或者放到浏览器变量里。string path = @stringDic["p_file"];
//浏览器变量p_file=D:\xxxx\tup    注意为目录注意路径不能含有中文，而不是文件。
//导出的文件放在软件运行目录,我的是D:\火车浏览器7.2\RunTime\fileList.txt
public static void Execute(Dictionary<string, string> stringDic,Dictionary<string, List<string>> listDic, Dictionary<string, int> intDic)
      {
String path = @"D:\xxxx\tup";
   DirectoryInfo folder = new DirectoryInfo(path);
StreamWriter sw = null;
sw = new StreamWriter(new FileStream("fileList.txt", FileMode.Append));
foreach (FileInfo file in folder.GetFiles("*.*"))
{

            //sw.WriteLine("文件名：" + file.FullName);
            sw.WriteLine(file.FullName);

}

      }

[attach]703[/attach]
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C#代码还是很强大的，大家也都多多发帖啊，互通有无。QQ984511989使用交流。
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