fix: 修复float32转换时精度丢失的问题。

nreflect/convert.go

@@ -209,7 +209,9 @@ func ValToString(rv reflect.Value, defaultAsErr bool) (str string, err error) {
 		str = strconv.FormatBool(rv.Bool())
 	case reflect.String:
 		str = rv.String()
-	case reflect.Float32, reflect.Float64:
+	case reflect.Float32:
+		str = strconv.FormatFloat(rv.Float(), 'f', -1, 32)
+	case reflect.Float64:
 		str = strconv.FormatFloat(rv.Float(), 'f', -1, 64)
 	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
 		str = strconv.FormatInt(rv.Int(), 10)