update 滑窗数据数量判定

et_cache/cacheHandler.go

@@ -78,7 +78,7 @@ func (the *CacheHandler) enqueue(p *common_models.ProcessData) *common_models.Pr
 }
 
 func (the *CacheHandler) windowCalc(raw float64, window common_models.CacheWindow) (float64, bool) {
-	if window.Size() == 0 {
+	if window.Size() == 0 || window.Len() == 0 {
 		return raw, false
 	}
 	result := 0.0