Programming, fishing OJ- fishing programming online products, used for scratch game construction and online production; OJ is used for algorithm detection and knowledge accumulation in the Olympic bid, which belongs to the integral competition mode.

Other programming cats and watermelons are pure online products. If you are interested, you can learn all about it. Personally recommend the first combination of online and offline. Curriculum and education management system are different.

If you are interested, you can continue to ask.