|
Post)
// 模拟几篇文章
post1 := &Post{Id: 1, Content: "Hello 1", Author: "userA"}
post2 := &Post{Id: 2, Content: "Hello 2", Author: "userB"}
post3 := &Post{Id: 3, Content: "Hello 3", Author: "userC"}
post4 := &Post{Id: 4, Content: "Hello 4", Author: "userA"}
// 存储到内存中
store(post1)
store(post2)
store(post3)
store(post4)
// 将内存中的map容器，保存到csv文件中
storeToCsv("d:/a.csv", PostById)
// 为了测试，此处将已保存在内存中的数据清空
PostById = map[int]*Post{}
PostsByAuthor = map[string][]*Post{}
// 下面是加载csv文件
s := load("d:/a.csv")
for _, post := range s {
store(post)
}
// 检索
fmt.Println(PostById[1])
fmt.Println(PostById[2])
for _, post := range PostsByAuthor["userA"] {
fmt.Println(post)
}
for _, post := range PostsByAuthor["userC"] {
fmt.Println(post)
}
}
运行结果：
&{1 Hello 1 userA}
&{2 Hello 2 userB}
&{1 Hello 1 userA}
&{4 Hello 4 userA}
&{3 Hello 3 userC}
|