带有编译错误的golang：未定义：strings.trim中的字符串

Question

I try to use golang deal with this problem 557. Reverse Words in a String III my code as below:

import "fmt"
import  ss "strings"

func reverseWords(s string) string {
    words := ss.Split(s," ");
    res := "";
    for i:=0; i < len(words);i++{
        curWord := ss.Split(words[i],"");
        for j:=len(curWord)-1; j >= 0;j--{
            res += curWord[j];
        }
        if(i!=len(words)-1){
            res += " ";
        }
    }
    return res;
}

func main(){
    s := "Let's take LeetCode contest";
    fmt.Println(reverseWords(s));
}

Everything is ok in my pc, it can pass compile at least.
However, when I submit in leetcode it tell me :

 Line 67: undefined: strings in strings.Trim 

I google this error but get nothing relevant info. As a beginner in golang, I need help. Everything will be appreciated.

Answer 1

If you import strings package with different name then it will cause issue as it is used by the wrapper code to run the function completely.

No need to import strings package again. It will be added.

Just use it directly.

func reverseWords(s string) string {
    words := strings.Split(s," ");
    res := "";
    for i:=0; i < len(words);i++{
        curWord := strings.Split(words[i],"");
        for j:=len(curWord)-1; j >= 0;j--{
            res += curWord[j];
        }
        if(i!=len(words)-1){
            res += " ";
        }
    }
    return res;
}