本文實例講述了C#讀取中文文件出現亂碼的解決方法。分享給大家供大家參考。具體分析如下：
先來看這段代碼：
FileStream aFile = new FileStream(SingleFile,FileMode.Open);StreamReader sr = new StreamReader(aFile,Encoding.GetEncoding("gb2312"),true);string FileContent = sr.ReadToEnd();aFile.Close();ProcessData Pd = new ProcessData();Pd.ProceData(FileContent);StreamReader 使用3個參數 最后一個自動檢測utf-8，中文大部分是gb2312，如果不是utf-8，就用gb2312
系統自帶utf 檢測 ，見如下：
private void DetectEncoding(){ if (this.byteLen >= 2) { this._detectEncoding = false; bool flag = false; if ((this.byteBuffer[0] == 0xfe) && (this.byteBuffer[1] == 0xff)) { this.encoding = new UnicodeEncoding(true, true); this.CompressBuffer(2); flag = true; } else if ((this.byteBuffer[0] == 0xff) && (this.byteBuffer[1] == 0xfe)) { if (((this.byteLen < 4) || (this.byteBuffer[2] != 0)) || (this.byteBuffer[3] != 0)) { this.encoding = new UnicodeEncoding(false, true); this.CompressBuffer(2); flag = true; } else { this.encoding = new UTF32Encoding(false, true); this.CompressBuffer(4); flag = true; } } else if (((this.byteLen >= 3) && (this.byteBuffer[0] == 0xef)) && ((this.byteBuffer[1] == 0xbb) && (this.byteBuffer[2] == 0xbf))) { this.encoding = Encoding.UTF8; this.CompressBuffer(3); flag = true; } else if ((((this.byteLen >= 4) && (this.byteBuffer[0] == 0)) && ((this.byteBuffer[1] == 0) && (this.byteBuffer[2] == 0xfe))) && (this.byteBuffer[3] == 0xff)) { this.encoding = new UTF32Encoding(true, true); this.CompressBuffer(4); flag = true; } else if (this.byteLen == 2) { this._detectEncoding = true; } if (flag) { this.decoder = this.encoding.GetDecoder(); this._maxCharsPerBuffer = this.encoding.GetMaxCharCount(this.byteBuffer.Length); this.charBuffer = new char[this._maxCharsPerBuffer]; } }}希望本文所述對大家的C#程序設計有所幫助。
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