string 如何从 Golang 中的字符串中修剪“[”字符
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/40760490/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to Trim "[" char from a string in Golang
提问by Blue Bot
Probably a silly thing but got stuck on it for a bit...
可能是一件愚蠢的事情，但被卡住了一段时间......
Can't trim a "["char from a string, things I tried with outputs:
无法"["从字符串中修剪字符，我尝试输出的内容：
package main
import (
"fmt"
"strings"
)
func main() {
s := "this[things]I would like to remove"
t := strings.Trim(s, "[")
fmt.Printf("%s\n", t)
}
// output: this[things]I would like to remove
Also tried all of those, with no success:
也尝试了所有这些，但没有成功：
s := "this [ things]I would like to remove"
t := strings.Trim(s, " [ ")
// output: this [ things]I would like to remove
s := "this [ things]I would like to remove"
t := strings.Trim(s, "[")
// output: this [ things]I would like to remove
None worked. What am I missing here?
没有一个工作。我在这里缺少什么？
回答by icza
You're missing reading the doc. strings.Trim():
你错过了阅读文档。strings.Trim()：
func Trim(s string, cutset string) stringTrim returns a slice of the string s with all leading and trailingUnicode code points contained in cutset removed.
func Trim(s string, cutset string) stringTrim 返回包含在 cutset 中的所有前导和尾随Unicode 代码点的字符串 s 的切片。
The [character in your input is not in a leadingnor in a trailingposition, it's in the middle, so strings.Trim()–being well behavior– will not remove it.
在[你输入的字符不是一个领导也不在尾部的位置，它在中间，所以strings.Trim()-being以及动作-将无法将其删除。
Try strings.Replace()instead:
s := "this[things]I would like to remove"
t := strings.Replace(s, "[", "", -1)
fmt.Printf("%s\n", t)
Output (try it on the Go Playground):
输出（在Go Playground上试试）：
thisthings]I would like to remove
There's also a strings.ReplaceAll()added in Go 1.12 (which is basically a "shorthand" for Replace(s, old, new, -1)).
strings.ReplaceAll()Go 1.12 中还有一个添加（基本上是 的“简写” Replace(s, old, new, -1)）。
