Old man's cold skin, cheap and delicious, and people must be chasing after him. Such products, however, have little choice in terms of wisdom, good in terms of revenue collection, low in entrepreneurship, good in terms of market prospects and low ingenuity. The old man's cold-skinned grass-grass food is popular and brings with it a large market, including a large collection of cash. The path to entrepreneurship, to be smooth, is your choice of wisdom. Join, the market is big. The old man's skin isn't every food we like, but sometimes we eat too much of the good stuff, and maybe we want to eat something new, and now we're going to make a profit. Land stalls have grown into black horses in the fast food industry today, creating a unique production system and management model. The old man's cold-skinned snacks, once introduced, are welcomed by the choicers of big and small wisdom, and many purchasers rely on the simple operation of snack cars, with little use, speed and unique taste. T...