Is it cost-effective to exchange Japanese yen for traveling in Japan?

To be on the safe side, we suggest China Bank, China Construction Bank, Bank of Communications, Agricultural Bank and Industrial and Commercial Bank, whose foreign exchange business is very mature and there will be no mistakes. You don't need to make an appointment, just like domestic business, you have to queue up at the bank. Try not to go when there are many people. You can exchange money at the airport in Japan. All airports have exchange points. Personally, I have been to Japan twice, once as a team of Zhongxin Tourism and once by myself. Exchanged free travel at the Japanese airport. In fact, the exchange rate is the international exchange rate at that time, and there is no other difference. Maybe just a few dollars, a few cents. Forget it.