排除FindAllString正则表达式中的重复项

package main

import (
    "fmt"
    "regexp"
)

func main() {
    str := "abababab"
    pattern := "ab"

    re := regexp.MustCompile(pattern)
    matches := re.FindAllString(str, -1)

    // 使用map来排除重复项
    uniqueMatches := make(map[string]bool)
    for _, match := range matches {
        uniqueMatches[match] = true
    }

    // 将map的键转换为切片
    result := make([]string, 0, len(uniqueMatches))
    for match := range uniqueMatches {
        result = append(result, match)
    }

    fmt.Println(result) // 输出: [ab]
}