求高手看看我的程序问题,出在哪,一个简单加法器 #includesbit key1=P3^0;sbit key2=P3^1;sbit key3=P3^2;sbit key4=P3^3;main(){P1=0xff;while(1){if(key1){while(key1);P1=0xfe;}else if(key2){while(key2);P1=0xfd;}else if(key3){while(key3);P1=0xfb;}else if(key4){while(key4);P1=0xf7;}}}
编写一个模拟计算器的程序.要包括以下方法:加法,减法,乘法,除法.每个方法至少有两个参数. import java.awt.*;import java.awt.event.*;import javax.swing.*;public class 计算器 extends JFrame implements ActionListener {private final String[]KEYS={\"7\",\"8\",\"9\",\"÷\",\"sqrt\",\"4\",\"5\",\"6\",×\",\"%\",\"1\",\"2\",\"3\",\"-\",\"1/x\",\"0\",\"+-\",\".\",\"+\",\"=\"};private final String[]COMMAND={\"Backspace\",\"CE\",\"C\"};private final String[]M={\"\",\"MC\",\"MR\",\"MS\",\"M+\"};private JButton keys[]=new JButton[KEYS.length];private JButton commands[]=new JButton[COMMAND.length];private JButton m[]=new JButton[M.length];private JTextField resultText=new JTextField();private boolean firstDigit=true;private double resultNum=0.0;private String operator=\"=;static double mr;记忆的数字private boolean operateValidFlag=true;JPanel panel[]=new JPanel[4];public 计算器(){super(\"计算器\");init();setBackground(Color.LIGHT_GRAY);setResizable(false);setLocation(588,250);setSize(378,214);setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);窗口不能直接关闭setVisible(true);addWindowListener(new WindowAdapter(){public void windowClosing。
这两个c程序加法器有什么区别 这是面向过程语言的程序模块化的思想,把一个功能分成一个个的模块(函数)假如这里面不仅是加法,而是加减乘除四种分别都做的话你要写四个的MAIN函数includeint a,b,c;main(){printf(\"please input value of a and b:\\n\");scanf(\"%d%d\",&a,&b);printf(\"%d\\n\",c,c=a+b);}而如果分成一个个的模块,只要写一个MAIN函数,调用四个模块,封装的思想,使代码不重复,