摘要：
1 import java.beans.FeatureDescriptor; 2 import java.io.*; 3 import java.util.Scanner; 4 5 6 public class num_3v { 7 public static void main(String[] args) throws IOException { 8 ... 阅读全文
摘要：
1 import java.io.*; 2 3 4 public class num_1v { 5 public static void main(String[] args) throws IOException { 6 File file = new File("e:\\test.txt"); 7 FileWriter fw = ne... 阅读全文