可能是件蠢事，但有一段时间被困住了.
无法从字符串中删除"["个字符，这是我try 过的输出:
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
我也try 了所有这些，但都没有成功:
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
都没用.我错过了什么？