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字节输入输出流： FileInputStream fis = new FileInputStream(filePath); FileOu
可以指定输出内容的字符集 不加装饰器:OutputStreamWiter os = new OutputStreamWriter(new FileOutputStream("D:/d/bai
InputStreamReader和 OutputStreamWriter new InputStreamReader(字节流,"UTF-8") //指定模式 将字节流转换为字符流
