What currency is used in the four-country tour of Germany, Italy, France and Switzerland?

Germany, Italy, France, and Switzerland are all European countries. Germany, Italy, and France use the euro, and Switzerland uses the franc. Scope of use of the euro:

1. Currently, 12 countries among the 25 EU member states have issued the euro, including France, Germany, Italy, the Netherlands, Belgium, Luxembourg, Ireland, Greece, Spain, and Portugal. , Austria, Finland;

2. The United Kingdom, Denmark, Sweden and other three countries do not issue euros;

3. In May 2004, Cyprus, the Czech Republic, Estonia, Hungary, and Latvia joined Ten countries including Lithuania, Malta, Poland, Slovakia and Slovenia issued euros.