From Chengdu, you can go to Dali first, and then go to Lijiang.

Dali: Cangshan Mountain, Erhai Lake, Santasi, Xizhou Residence, Jizu Mountain, and Foreigners Street in Dali Ancient City. ? Accommodation is recommended in Gucheng Inn, where you can eat live fish that can be boiled alive, ham fried with tree head vegetables, Dali seaweed soup, pickled snails, shredded pork in Weishan, hot and sour fish in Dali, bean jelly with chicken, stewed plum in Dali and frozen white bean curd fish in Dali

Lijiang: Dayan Ancient Town, Mufu, Yulong Snow Mountain, Heilongtan Park, Shuhe Ancient Town, Yushuizhai, Qianguishan, and Lijiang. Old Town of Lijiang Inn is recommended for accommodation, Lijiang Jinsha Tourism, Lijiang Special Chicken Hot Pot, Lijiang Baba, yellow bean, Buttered Tea, Fried Potato, Rice Enema, Yak Yogurt, Potato Chicken and Native Rice Noodles are recommended for tourism.

On the first day, you can visit the ancient city to Mufu and Wangulou,

On the second day, you can go to Yulong Snow Mountain, pass through Heilongtan Park, and on the third and fourth days, you can go to Lugu Lake

On the fifth day, you can ride horses in Lashihai to experience the ancient tea-horse culture

On the sixth and seventh days, you can go to Shangri-La, the first bay of the Yangtze River-Tiger Leaping Gorge (on foot)-Pudacuo Park-Lijiang. If you want to go to the scenic spot by yourself, you need to pay attention to this to avoid being cheated by the locals. Don't buy things at the scenic spots at will, because the things sold at the scenic spots are similar, but they are very expensive

I hope the answer will help you.