使用实体框架将不同的记录插入到具有外键的表中

// 创建主表的实体对象
var mainEntity = new MainEntity
{
    MainProperty1 = "Value1",
    MainProperty2 = "Value2"
};

// 创建从表的实体对象
var childEntity1 = new ChildEntity
{
    ChildProperty1 = "Value3",
    ChildProperty2 = "Value4",
    MainEntity = mainEntity // 设置外键属性
};

var childEntity2 = new ChildEntity
{
    ChildProperty1 = "Value5",
    ChildProperty2 = "Value6",
    MainEntity = mainEntity // 设置外键属性
};

// 将从表的实体对象添加到主表的外键属性中
mainEntity.ChildEntities.Add(childEntity1);
mainEntity.ChildEntities.Add(childEntity2);

// 保存更改到数据库
using (var context = new YourDbContext())
{
    context.MainEntities.Add(mainEntity);
    context.SaveChanges();
}