如何在LINQ查询中添加多个动态条件或过滤器。

// 假设有一个名为"students"的数据源，包含学生的姓名、年龄和成绩信息
var students = new List<Student>
{
    new Student { Name = "Alice", Age = 18, Grade = 90 },
    new Student { Name = "Bob", Age = 20, Grade = 85 },
    new Student { Name = "Charlie", Age = 19, Grade = 95 },
    // ...
};

// 创建初始查询
var query = students.AsQueryable();

// 动态条件1：筛选年龄大于等于18岁的学生
int minAge = 18;
query = query.Where(s => s.Age >= minAge);

// 动态条件2：筛选成绩大于等于90分的学生
int minGrade = 90;
query = query.Where(s => s.Grade >= minGrade);

// 执行查询
var result = query.ToList();

// 输出结果
foreach (var student in result)
{
    Console.WriteLine($"Name: {student.Name}, Age: {student.Age}, Grade: {student.Grade}");
}