Hlang--Write a programming language in Python-judgment and loop

Preface

okey, very good. In the previous article, we implemented this basic logical operation, so here, we will be able to implement our judgment and loop. Since our operation here is actually similar to the previous operation, the operation at the code level is very simple. But it seems a bit abstract at the grammatical level.

Then of course first see the effect achieved here:

Here, there is no way. I think it is too awkward to use Chinese, so I changed it back, and the corresponding error report was also changed, but the relevant tips