在go语言中删除切片或数组中重复项的示例代码

如何删除切片中的重复项？

测试切片数据，例如，此切片有2个字符串重复项：

duplicate := []string{"Hello", "World", "GoodBye", "World", "We", "zongscan", "zongscan", "houtizong"}

代码示例：

用迭代切片并将非重复项复制到新切片

 package main

 import (
 	"fmt"
 )

 func printslice(slice []string) {
 	fmt.Println("slice = ", slice)
 	//for i := range slice {
   //		fmt.Println(i, slice[i])
 	//}
 }

 func stringInSlice(str string, list []string) bool {
 	for _, v := range list {
 		if v == str {
 			return true
 		}
 	}
 	return false
 }

 func main() {
 	duplicate := []string{"Hello", "World", "GoodBye", "World", "We", "zongscan", "zongscan", "houtizong"}

 	printslice(duplicate)

	//需要从切片中删除重复数据
	//这个想法是将数据复制到没有重复的新切片中

 	cleaned := []string{}

 	for _, value := range duplicate {

 		if !stringInSlice(value, cleaned) {
 			cleaned = append(cleaned, value)
 		}
 	}

 	printslice(cleaned)
 }

输出 ：

slice = [Hello World GoodBye World We zongscan zongscan houtizong]
slice = [Hello World GoodBye We zongscan houtizong]