把model和params模型文件转成kv格式，嵌入服务时会报如下错误

已解决，是部分版本paddle在保存inference model时会在最后面加上一层scale层，把其注释掉就可以了。

Line 1140 in 394edd8

var = layers.scale(

As user save model with interface save_inference_model, a unexpected op scale will be inserted into model, which causes failure in some inference phase.