add slice helper

pkg/slice/slice.go

@@ -0,0 +1,64 @@
+package slice
+
+import (
+	"math/rand"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// Contains slice中是否包含某个字符串
+func Contains(slice []string, element string) bool {
+	for _, i := range slice {
+		if i == element {
+			return true
+		}
+	}
+
+	return false
+}
+
+// RemoveDuplicatesFromSlice 去重
+func RemoveDuplicatesFromSlice(intSlice []string) []string {
+	keys := make(map[string]bool)
+	var list []string
+	for _, entry := range intSlice {
+		if _, value := keys[entry]; !value {
+			keys[entry] = true
+			list = append(list, entry)
+		}
+	}
+
+	return list
+}
+
+// Shuffle 随机打乱
+func Shuffle(array []string) []string {
+	random := rand.New(rand.NewSource(time.Now().UnixNano()))
+	for i := len(array) - 1; i > 0; i-- {
+		j := random.Intn(i + 1)
+		array[i], array[j] = array[j], array[i]
+	}
+
+	return array
+}
+
+// ReverseSlice 反转
+func ReverseSlice(a []int) []int {
+	for i := len(a)/2 - 1; i >= 0; i-- {
+		pos := len(a) - 1 - i
+		a[i], a[pos] = a[pos], a[i]
+	}
+
+	return a
+}
+
+// ConvertSliceToString 将 slice 转换为逗号分隔的字符串
+func ConvertSliceToString(input []int) string {
+	var output []string
+	for _, i := range input {
+		output = append(output, strconv.Itoa(i))
+	}
+
+	return strings.Join(output, ",")
+}