IO流写出到本地 D盘demoIO.txt 文本中
1.
public class Hello { private static final String LINE_SEPARATOR = System.getProperty("line.separator");//换行 public static void main(String[] args) throws Exception { FileWriter writer = null; try{ writer = new FileWriter("d:\\demoIO.txt"); writer.write("abcdedd"+LINE_SEPARATOR+"HELLOWORLD"); }catch (Exception e){ System.out.println(e.toString()); }finally { if (writer != null){ try{ writer.close(); }catch (Exception e){ throw new RuntimeException("关闭失败"); } } } }
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