cp.java

computer.java

@@ -0,0 +1,31 @@
+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;
+	}
+
+}
+

cp.java

@@ -0,0 +1,31 @@
+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;
+	}
+
+}
+