Java程序设计计算器(含代码)

el();Р JPanel p7 = new JPanel();Р txt = new JTextField(30);// 创建文本框Р txt.setHorizontalAlignment(JTextField.RIGHT);//设置文本框的属性为右对齐Р JButton bt00=new JButton("Sin"); //创建标题名为Sin的按钮组件,进行sin函数计算Р JButton bt = new JButton("Cos"); Р JButton bt1 = new JButton("Tan"); Р JButton bt2 = new JButton("Log"); //创建标题名为Log的按钮组件,进行底为10的对数计算函数计算Р JButton bt3 = new JButton("Len"); //创建标题名为Len的按钮组件,进行底为e的对数计算函数计算Р Р JButton bt4 = new JButton("二进制");Р JButton bt5 = new JButton("Back"); //创建标题名为Back的按钮,对于输出的数字进行退格Р JButton bt6 = new JButton("C"); //初始化计算器按钮,进行复位功能Р Р JButton bt7 = new JButton("7");Р JButton bt8 = new JButton("8");Р JButton bt9 = new JButton("9");Р JButton bt0 = new JButton("/");Р JButton bt11 = new JButton("Sqrt"); //求数字的平方根按钮Р Р JButton bt12 = new JButton("4");Р JButton bt13 = new JButton("5");