英文:
List of Strings - golang
问题
我正在尝试在golang中创建一个字符串列表。我查看了container/list包，但我不知道如何插入一个字符串。我尝试了几次，但没有结果。
我应该使用其他东西代替列表吗？
提前感谢。
编辑：不知道为什么你们给这个问题评负分....
英文:
I'm trying to make a list of Strings in golang. I'm looking up the package container/list but I don't know how to put in a string. I tried several times, but 0 result.
Should I use another thing instead of lists?
Thanks in advance.
edit: Don't know why are you rating this question with negatives votes...
答案1
得分: 3
修改您提供的示例，并将整数更改为字符串对我有效：
package main
import (
"container/list"
"fmt"
)
func main() {
// 创建一个新的列表并放入一些字符串。
l := list.New()
e4 := l.PushBack("4")
e1 := l.PushFront("1")
l.InsertBefore("3", e4)
l.InsertAfter("2", e1)
// 遍历列表并打印其内容。
for e := l.Front(); e != nil; e = e.Next() {
fmt.Println(e.Value)
}
}
请注意，我只是将代码翻译成中文，不会执行代码或提供任何其他功能。
英文:
Modifying the exact example you linked, and changing the ints to strings works for me:
package main
import (
"container/list"
"fmt"
)
func main() {
// Create a new list and put some numbers in it.
l := list.New()
e4 := l.PushBack("4")
e1 := l.PushFront("1")
l.InsertBefore("3", e4)
l.InsertAfter("2", e1)
// Iterate through list and print its contents.
for e := l.Front(); e != nil; e = e.Next() {
fmt.Println(e.Value)
}
}
答案2
得分: 1
如果你查看你提供的包的源代码，你会发现List类型保存了一个Element列表。观察Element，你会看到它有一个叫做Value的公开字段，它是一个interface{}类型，意味着它可以是任何类型：string、int、float64、io.Reader等等。
回答你的第二个问题，你会发现List有一个叫做Remove(e *Element)的方法。你可以像这样使用它：
fmt.Println(l.Len()) // 输出：4
// 遍历列表并打印其内容。
for e := l.Front(); e != nil; e = e.Next() {
if e.Value == "4" {
l.Remove(e) // 移除 "4"
} else {
fmt.Println(e.Value)
}
}
fmt.Println(l.Len()) // 输出：3
总的来说，Golang的文档通常都很可靠，所以你应该首先查看文档。
https://golang.org/pkg/container/list/#Element
英文:
If you take a look at the source code to the package you linked, it seems that the List type holds a list of Elements. Looking at Element you'll see that it has one exported field called Value which is an interface{} type, meaning it could be literally anything: string, int, float64, io.Reader, etc.
To answer your second question, you'll see that List has a method called Remove(e *Element). You can use it like this:
fmt.Println(l.Len()) // prints: 4
// Iterate through list and print its contents.
for e := l.Front(); e != nil; e = e.Next() {
if e.Value == "4" {
l.Remove(e) // remove "4"
} else {
fmt.Println(e.Value)
}
}
fmt.Println(l.Len()) // prints: 3
By and large, Golang documentation is usually pretty solid, so you should always check there first.
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