When frying cucumber, the whole cucumber can be washed, sliced or diced, and then put into a frying pan to fry with other ingredients. If you like cucumber with crisp taste, you can pickle it with salt first, then wash it and fry it, which can improve the taste of cucumber.
In a word, the skin of cucumber is edible and need not be peeled. When frying cucumber, it is suggested to keep the skin of cucumber to obtain better nutrition and taste.