请帮忙用C语言设计一个简单的计算器、可以加减乘除,输出结果为“A+B=...答:int main(){ float x,y,z;char c;printf("请输入x,y的值:");scanf("%f %f",&x,&y);printf("请输入操作符:");scanf("%c",&c);switch(c){ case ‘+’: printf("x+y=%f",x+y);break;case '-': printf("x-y=%f",x-y);break;case '*': printf("x*y=%f",x*...
1 简单计算器。请编写一个程序计算表达式:datal op data2的值。其中op...答:1,简单计算器代码如下:import javax.swing.*;import java.awt.*;import java.awt.event.*;public class Jsq extends JFrame implements ActionListener{ JTextField txt = new JTextField(15);JPanel p = new JPanel();JButton b0,b1,b2,b3,b4,b5,b6,b7,b8,b9;JButton bAdd,bDif,bMul,b...
计算器 用java编写答:JFrame jf = new JFrame("grefr的计算器");//创建一个新的、初始不可见的、具有指定标题的 Frame。JPanel jp = new JPanel();//创建具有双缓冲和流布局的新 JPanel。String[] lab = {"Back","CE","C","+","7","8","9","-","4","5","6","*","1","2","3","/",...