101 lines
2.5 KiB
Go
101 lines
2.5 KiB
Go
package tools
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import (
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"fmt"
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"strconv"
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"strings"
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)
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//字符串切片比较
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func ArrStrCmp(src []string, dest []string) ([]string, []string) {
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msrc := make(map[string]byte) //按源数组建索引
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mall := make(map[string]byte) //源+目所有元素建索引
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var set []string //交集
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//1.源数组建立map
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for _, v := range src {
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msrc[v] = 0
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mall[v] = 0
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}
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//2.目数组中，存不进去，即重复元素，所有存不进去的集合就是并集
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for _, v := range dest {
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l := len(mall)
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mall[v] = 1
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if l != len(mall) {
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continue
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} else {
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set = append(set, v)
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}
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}
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//3.遍历交集，在并集中找，找到就从并集中删，删完后就是补集（即并-交=所有变化的元素）
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for _, v := range set {
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delete(mall, v)
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}
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//4.此时，mall是补集，所有元素去源中找，找到就是删除的，找不到的必定能在目数组中找到，即新加的
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var added, deleted []string
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for v := range mall {
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_, exist := msrc[v]
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if exist {
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deleted = append(deleted, v)
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} else {
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added = append(added, v)
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}
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}
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return added, deleted
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}
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//uint切片比较
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func ArrUintCmp(src []uint, dest []uint) ([]uint, []uint) {
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msrc := make(map[uint]byte) //按源数组建索引
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mall := make(map[uint]byte) //源+目所有元素建索引
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var set []uint //交集
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//1.源数组建立map
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for _, v := range src {
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msrc[v] = 0
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mall[v] = 0
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}
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//2.目数组中，存不进去，即重复元素，所有存不进去的集合就是并集
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for _, v := range dest {
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l := len(mall)
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mall[v] = 1
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if l != len(mall) {
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continue
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} else {
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set = append(set, v)
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}
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}
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//3.遍历交集，在并集中找，找到就从并集中删，删完后就是补集（即并-交=所有变化的元素）
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for _, v := range set {
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delete(mall, v)
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}
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//4.此时，mall是补集，所有元素去源中找，找到就是删除
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var added, deleted []uint
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for v := range mall {
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_, exist := msrc[v]
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if exist {
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deleted = append(deleted, v)
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} else {
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added = append(added, v)
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}
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}
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return added, deleted
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}
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//将字符串切片转换为uint切片
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func SliceToString(src []uint, delim string) string {
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return strings.Trim(strings.Replace(fmt.Sprint(src), " ", delim, -1), "[]")
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}
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//将字符串切片转换为uint切片
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func StringToSlice(src string, delim string) []uint {
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var dest []uint
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if src == "" {
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return dest
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}
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strs := strings.Split(src, delim)
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for _, v := range strs {
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t, _ := strconv.Atoi(v)
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dest = append(dest, uint(t))
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}
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return dest
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}
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