FileWriter FileReader 不支持设定文件编码
br = new BufferedReader(new InputStreamReader(url.openStream(),"UTF-8"));// bw = new BufferedWriter(new FileWriter(file));bw=new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file),"UTF-8"));

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1 楼 吾怜茜 19 小时前 字符流和字节流之间转换的时候才能加编码参数吧?