Do melons and millet exist?

Does not exist. According to the query planting network, melon and millet are two different plants, melon belongs to cucurbitaceae and millet belongs to Gramineae. Melon is a kind of fleshy fruit, and millet is a kind of seed fruit. They are different in shape, taste and nutrients. In addition, the seeds of melon are in the flesh and the seeds of millet are in the peel, which is also an obvious difference between the two.