Java.io.ObjectInputStream.readDouble() 方法 Java.io.ObjectInputStream.readUnshared() 方法 Java.io.ObjectInputStream readUnsignedByte() 方法 Java.io.ObjectInputStream.readDouble() 方法 package com.codingdict; import java.io.*; public class ObjectInputStreamDemo { public static void main(String[] args) { double b = 0380549705498d; try { // create a new file with an ObjectOutputStream FileOutputStream out = new FileOutputStream("test.txt"); ObjectOutputStream oout = new ObjectOutputStream(out); // write something in the file oout.writeDouble(b); oout.writeDouble(49753986394864d); oout.flush(); // create an ObjectInputStream for the file we created before ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt")); // read and print a double System.out.println("" + ois.readDouble()); // read and print a double System.out.println("" + ois.readDouble()); } catch (Exception ex) { ex.printStackTrace(); } } } Java.io.ObjectInputStream.readUnshared() 方法 Java.io.ObjectInputStream readUnsignedByte() 方法