Before takling about the ways of payments, I have a question for everyone. What can't we do without E-payments? Maybe most of us would simultaneously speak out the answer that is shopping online! Using cash or E-payments when pay for items you buy is an argument has been arguing since the day E-payments were created. Someone think that seeing money taken out of their wallet can make them feel a little bit heartbreaking, which also can promote them not to overspend. But others think that after paying for things with an app, they will get some digital records which help them manage their money better. In fact, I can receive a bill on Wechat everyday to tell me how much money I spent yesterday and what sorts of items I bought. At the end of each month, the app will help me analyse my consumption habit. According to thees analysiss, I can cut the needless consumption next month. But for elders, they always doubt the security of E-paymens. They don't like their private records can be seen by others.