package computer;

import java.util.Scanner;

public class compute {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Double op1;
	      Double op2;
	       String op;
	       Scanner sc = new Scanner(System.in);
	       System.out.println("请输入第一个操作数(回车结束)");
	       op1=sc.nextDouble();
	       System.out.println("请输入运算符(回车结束)");
	       op=sc.next();
	       System.out.println("请输入第二个操作数(回车结束)");
	       op2=sc.nextDouble();
	       System.out.print("结果是：");
	       switch(op) {
	       case "+":System.out.println(coputer1(op1,op2));break;
	       case "-":System.out.println(coputer1(op1,op2));break;
	       case "*":System.out.println(coputer1(op1,op2));break;
	       case "/":System.out.println(coputer1(op1,op2));break;
	       case "^":System.out.println(function(op1,op2));break;
	       case "log":System.out.println(logax(op1,op2));break;
	       case "e^" :System.out.println(calcalate(op2));break;
	}

}