feat：完善信息

utils/array.go

@@ -5,16 +5,34 @@ import (
 	"reflect"
 )
 
+// [1,2,3, 4, 5,6,7]
+// 7
+// mid: 3
 func InArray(search, needle interface{}) bool {
 	val := reflect.ValueOf(needle)
 
 	kind := val.Kind()
 
 	if kind == reflect.Slice || kind == reflect.Array {
-		for i := 0; i < val.Len(); i++ {
+		_length := val.Len()
+
+		if _length <= 0 {
+			return false
+		} else if _length == 1 {
+			return val.Index(0).Interface() == search
+		}
+		mid := _length >> 1
+
+		for i := 0; i < mid; i++ {
 			if val.Index(i).Interface() == search {
 				return true
 			}
+			if val.Index((_length-1)-i).Interface() == search {
+				return true
+			}
+		}
+		if _length%2 > 0 {
+			return val.Index(mid+1).Interface() == search
 		}
 	}
 	return false