//不存在则创建
//存在则覆盖
FileStream fs=newFileStream(@".json.txt",FileMode.OpenOrCreate); StreamWriter sw = new StreamWriter(fs);
//写入
string str = "123456";
sw.Write(System.Text.Encoding.UTF8.GetString(str));
//释放资源
sw.Close();
//不存在则创建
//存在则覆盖
FileStream fs=newFileStream(@".json.txt",FileMode.OpenOrCreate); StreamWriter sw = new StreamWriter(fs);
//写入
string str = "123456";
sw.Write(System.Text.Encoding.UTF8.GetString(str));
//释放资源
sw.Close();