diff --git a/tools/any2any.go b/tools/any2any.go
index 9f0de29..38d770c 100644
--- a/tools/any2any.go
+++ b/tools/any2any.go
@@ -735,7 +735,11 @@ func Float64tostring(f float64) string {
 	if f == math.Trunc(f) {
 		return strconv.FormatInt(int64(f), 10)
 	}
-	return strconv.FormatFloat(f, 'f', 6, 64)
+	// 用 15 位精度，然后用 TrimRight 去零
+	s := strconv.FormatFloat(f, 'f', 15, 64)
+	s = strings.TrimRight(s, "0")
+	s = strings.TrimRight(s, ".")
+	return s
 }
 
 // StrToFloat64 字符串转 float 64
diff --git a/tools/array.go b/tools/array.go
index f3a8f46..6c52316 100644
--- a/tools/array.go
+++ b/tools/array.go
@@ -466,3 +466,14 @@ func MapKeys[K comparable, V any](m map[K]V) []K {
 	}
 	return keys
 }
+
+func Pluck[T any, R any](slice []T, extractor func(T) R) []R {
+	if len(slice) == 0 {
+		return []R{} // 返回空切片而非 nil，避免 nil 检查
+	}
+	result := make([]R, len(slice))
+	for i, item := range slice {
+		result[i] = extractor(item)
+	}
+	return result
+}