Demonstration model: iPhone12&; & Huawei P40 &；; & Xiaomi 1 1 system version: IOs14.4&; & ampemui 1 1 & amp； & miui12.0.7 app version: Taobao 10.2.5 Taobao spot means that the seller has this product in stock, and the buyer can deliver it after photographing it, without going to the manufacturer or shopping mall to pick up the goods. With the emergence of the Internet, the world has gradually become a global village, and spot electronic transactions based on informationization have stepped onto the stage of the new economy. Spot electronic transactions take spot warehouse receipts as the transaction subject matter, and adopt centralized bidding transactions and unified transactions through computer networks.