Python怎么这么香（洛谷P2788题解，Java语言描述）

题目要求

P2788题目链接

分析

表达式求值而已，无营养题目~~

用Java简单求解即可

AC代码（Java语言描述）

import java.util.LinkedList;
import java.util.Queue;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String expression = scanner.nextLine();
        scanner.close();
        char[] chars = expression.toCharArray();
        Queue queue = new LinkedList();
        for (char c : chars) {
            if (c == '+' || c == '-') {
                queue.offer(c);
            }
        }
        String[] numArray = expression.split("[+]|[-]");
        long result = Integer.parseInt(numArray[0]);
        for (int i = 1; i