How to automatically generate front-end barcode from back-end data

我有几个数值,通过后端直接将数值赋值给条码属性的字段里,我要如何操作才能自动触发生成条码的格式。现在触发需要我手动点击条码属性字符才能生成。我需要怎么操作?
I have several values. I directly assign the values to the barcode attribute fields through the back end. How can I automatically trigger the barcode format generation. Now trigger requires me to manually click barcode attribute character to generate. What do I need to do?