blog.golang.org/slices and blog.golang.org/strings
-rob
On Sat, May 27, 2017 at 11:14 AM, <long.a...@gmail.com> wrote:
> I find the method like:
>
> package main
>
>
> import (
> "fmt"
> "strings"
> "unicode/utf8"
> )
>
>
> func main() {
> var str = "a/b/汉字/d/汉字"
> var _, size = utf8.DecodeLastRuneInString(str)
> // Does `str[0:len(str)-size]` have memory copy?
> var i = strings.LastIndex(str[0:len(str)-size], "/汉字")
> fmt.Println(i)
> }
>
>
>
> But I don't know if str[0:len(str)-size] if copy the string? If the code
> will copy the string, I will covert the string to []byte first. Because I
> need several times check for the str.
> Where I can find some article about that(str copy)?
>
>
> On Friday, May 26, 2017 at 10:45:09 PM UTC+8, long...@gmail.com wrote:
>>
>> var str = "a/b/c/d/c"
>> // I want remove last chracter from str
>> var strRunes = []rune(str)
>> var newStrRunes = strRunes[0 : len(strRunes)-1]
>> // then I want get last index of chracters `/c`, I need
>> convert to string back!???
>> strings.LastIndex(string(newStrRunes), "/c")
>> // Does there have a method that LastIndex(rs []rune, s
>> string)
>>
>> Thanks for your help!
>>
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