import?javax.swing.*;
import?javax.swing.event.*;
import?java.awt.*;
import?java.awt.event.*;
public?class?Mycalculator?extends?Jframe?implements?ActionListener{

	public?Jframe?frame;
	public?JPanel?panelpanel2;
	public?JMenuBar?menubar;//菜單
	public?JMenu?filemenuhelpmenu;
	public?JMenuItem?exititemaboutitem;
????public?JTextField?textfield;
	public?JButton?btn0btn1btn2btn3btn4btn5btn6btn7btn8btn9;
	public?JButton?btnAddbtnSubbtnMulbtnDivbtnEqubtnFanbtnPointbtnCbtnSqrtbtnDao;
	private?boolean?clickable=true;//設(shè)置可否輸入
	private?boolean?clear=true;//判斷是否按了符號（運算功能）鍵
	private?double?xs;
	private?int?flag_symbol=0;//運算時的符號標(biāo)志初始為0
	private?int?equ_num=1;//一次運算中按等號的次數(shù)初始為1（為了實現(xiàn)連等）
	private?int?num=1;//為了實現(xiàn)連等而設(shè)置的參數(shù)
	
	
	public?Mycalculator（）{
		
		menubar=new?JMenuBar（）;
		menubar.setOpaque（true）;?//設(shè)為不透明
		frame=new?Jframe（“謝文濱的計算器“）;
		Toolkit?toolkit=frame.getToolkit（）;
		Image?myimage=toolkit.getImage（“a2.gif“）;
		frame.setIconImage（myimage

?屬性????????????大小?????日期????時間???名稱
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?????文件?????173056??2009-01-15?14:07??設(shè)計報告.doc

?????文件??????11050??2009-01-14?23:20??Mycalculator.java

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???????????????184106????????????????????2