C# 学生信息管理系统：输入、输出和查询分数

下面是完整的C#代码实现：

using System; using System.Collections.Generic;

namespace StudentManagement { class Program { static Dictionary<string, int> students = new Dictionary<string, int>();

    static void Main(string[] args)
    {
        Console.WriteLine('请输入学生信息，格式为：姓名 分数');
        InputStudents();
        Console.WriteLine('所有学生信息如下：');
        OutputStudents();
        Console.WriteLine('请输入要查询分数的学生姓名：');
        string name = Console.ReadLine();
        QueryScore(name);
    }

    static void InputStudents()
    {
        while (true)
        {
            string input = Console.ReadLine();
            if (string.IsNullOrWhiteSpace(input)) break;

            string[] parts = input.Split(' ');
            if (parts.Length != 2) continue;

            string name = parts[0];
            int score;
            if (!int.TryParse(parts[1], out score)) continue;

            students[name] = score;
        }
    }

    static void OutputStudents()
    {
        foreach (var student in students)
        {
            Console.WriteLine('{0} {1}', student.Key, student.Value);
        }
    }

    static void QueryScore(string name)
    {
        int score;
        if (students.TryGetValue(name, out score))
        {
            Console.WriteLine('{0}的分数是：{1}', name, score);
        }
        else
        {
            Console.WriteLine('未找到该学生的信息');
        }
    }
}

}