Java.io.PushbackReader.skip() 方法 Java.io.PushbackReader.reset() 方法 Java.io.PushbackReader.unread char array() 方法 Java.io.PushbackReader.skip() 方法 package com.codingdict; import java.io.*; public class PushbackReaderDemo { public static void main(String[] args) { String s = "Hello World"; // create a new StringReader StringReader sr = new StringReader(s); // create a new PushBack reader based on our string reader PushbackReader pr = new PushbackReader(sr, 20); try { // read the first five chars for (int i = 0; i < 5; i++) { char c = (char) pr.read(); System.out.print("" + c); // skip a character every time pr.skip(1); } // change line System.out.println(); // close the stream pr.close(); } catch (IOException ex) { ex.printStackTrace(); } } } Java.io.PushbackReader.reset() 方法 Java.io.PushbackReader.unread char array() 方法