25 lines
631 B
Java
25 lines
631 B
Java
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package exp6;
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import java.util.Scanner;
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public class Calculator {
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public static void main(String[] args) {
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double a, b;
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String opType;
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Scanner in =new Scanner(System.in);
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System.out.print("请输入第一个数: ");
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a = in.nextDouble();
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System.out.print("请输入第二个数: ");
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b = in.nextDouble();
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System.out.print("请选择运算(+-*/): ");
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opType = in.next();
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in.close();
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Operation op = OperationFactory.createOperate(opType);
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op.setNumber(a, b);
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System.out.println("结果是: "+op.result());
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}
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}
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