/// <summary>/// 写入到txt/// </summary>/// <param name="savePath"></param>/// <param name="content"></param>public static void WriteInTxt(string savePath, string content){
string tempPath = System.IO.Path.GetDirectoryName(savePath);
System.IO.Directory.CreateDirectory(tempPath);
//创建临时文件目录if (!System.IO.File.Exists(savePath)){
FileStream fs1 = new FileStream(savePath, FileMode.Create, FileAccess.Write);
//创建写入文件 StreamWriter sw = new StreamWriter(fs1);
sw.WriteLine(content);
//开始写入值sw.Close();
fs1.Close();
}
else{
FileStream fs = new FileStream(savePath, FileMode.Open, FileAccess.Write);
StreamWriter sr = new StreamWriter(fs);
sr.WriteLine(content);
//开始写入值sr.Close();
fs.Close();
}
}
/// <summary>/// 递归删除文件夹下所有文件/// </summary>/// <param name="file"></param>public static void DeleteFile(string dirPath){
try{
//去除文件夹和子文件的只读属性//去除文件夹的只读属性System.IO.DirectoryInfo fileInfo = new DirectoryInfo(dirPath);
fileInfo.Attributes = FileAttributes.Normal & FileAttributes.Directory;
//去除文件的只读属性System.IO.File.SetAttributes(dirPath, System.IO.FileAttributes.Normal);
//判断文件夹是否还存在if (Directory.Exists(dirPath)){
foreach (string f in Directory.GetFileSystemEntries(dirPath)){
if (File.Exists(f)){
//如果有子文件删除文件File.Delete(f);
}
else{
//循环递归删除子文件夹 DeleteFile(f);
}
}
//删除空文件夹 Directory.Delete(dirPath);
}
}
catch (Exception e){
}
}
/// <summary>/// Http下载文件/// </summary>/// <param name="url">下载文件路径</param>/// <param name="savePath">保存路径</param>/// <returns></returns>public static bool HttpDownloadFile(string url, string savePath){
string tempPath = System.IO.Path.GetDirectoryName(savePath);
System.IO.Directory.CreateDirectory(tempPath);
//创建临时文件目录string tempFile = tempPath + @"" + System.IO.Path.GetFileName(savePath);
//临时文件if (System.IO.File.Exists(tempFile)){
//存在则跳出return true;
//System.IO.File.Delete(tempFile);
}
try{
FileStream fs = new FileStream(tempFile, FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
// 设置参数HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
//发送请求并获取相应回应数据HttpWebResponse response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求Stream responseStream = response.GetResponseStream();
//创建本地文件写入流//Stream stream = new FileStream(tempFile, FileMode.Create);
byte[] bArr = new byte[1024];
int size = responseStream.Read(bArr, 0, (int)bArr.Length);
while (size > 0){
//stream.Write(bArr, 0, size);
fs.Write(bArr, 0, size);
size = responseStream.Read(bArr, 0, (int)bArr.Length);
}
//stream.Close();
fs.Close();
responseStream.Close();
System.IO.File.Move(tempFile, savePath);
return true;
}
catch (Exception ex){
return false;
}
}