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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                按方向可分為輸入流輸出流 按處理單位可分為字節流和字符流 按功能可分為節點流和處理流 >## 字節流 ``` FileInputStream(File file | String source); FileOutputStream(File file | String target); // 字節數組流 ByteArrayInputStream(byte[] buf); ByteArrayOutputStream(int size); // 默認緩沖區32字節 // 對象流 ObjectInputStream(InputStream is); ObjectOutputStream(OutputStream os); // 字節緩沖流,緩存,提高效率 BufferedInputStream(InputStream is, int size); BufferedOutputStream(OutputStream os, int size); ``` >## 字符流 ``` FileReader(File file | String source); FileWriter(String target | File file, boolean append); // 字符緩沖流 BufferedReader(Reader r, int size); BufferedWriter(Writer w, int size); // 字節字符橋接流 InputStreamReader(InputStream is, String character); OutputStreamWriter(OutputStream os, String charater); PrintWriter(String target, String character) ``` ***** **tip** - 輸入輸出流一般成對出現。 - io流的關閉原則是“先打開,后關閉”,或者根據依賴原則,先關閉處理流,再關閉節點流。
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