golang用strings.Split切割字符串

kv := strings.Split(authString, " ")	if len(kv) != 2 || kv[0] != "Bearer" {		beego.Debug("AuthString invalid:"+authString)		base.ReturnError(errors.New("AuthString invalid:"+authString))		return ""	}	tokenString := kv[1]

kov := strings.Split(cond, ":")		if len(kov) != 3 {			return queryVal, queryOp, errors.New("Query format != k:o:v")		}

　　

prefixemail := strings.Split(email, "@")[0] s = strings.Split("abc,abc", "")    fmt.Println(s, len(s))    s = strings.Split("", ",")    fmt.Println(s, len(s))    s = strings.Split("abc,abc", ",")    fmt.Println(s, len(s))    s = strings.Split("abc,abc", "|")    fmt.Println(s, len(s))    fmt.Println(len(""))    fmt.Println(len([]string{""}))    str := ""    fmt.Println(str[0])运行结果:[] 0    //返回空数组[a b c , a b c] 7  //返回7个数组元素[] 1  //返回一个包含空字符元素的数组, 数组长度是1[abc abc] 2[abc,abc] 101panic: runtime error: index out of range