xiaoshulinlove

Results 1 issues of xiaoshulinlove

The SVM should be trained first in function CvSVM

2 comment

![捕获](https://user-images.githubusercontent.com/24826625/57701251-351c6e00-768e-11e9-9efb-cb7c6cb333d7.PNG) 请问这个错误应该怎么解决