我有一个国家列表如下：
Ghana
Bangladesh
Guam
Bosnia and Herzegovina
Vanuatu
Iceland
Estonia
Algeria
Andorra
Australia
American Samoa
Bahrain
Korea, Dem. Rep.
Romania
Switzerland
Central African Republic
St. Lucia
Marshall Islands
Turks and Caicos Islands
Indonesia
St. Vincent and the Grenadines
Small states
Gibraltar
Greenland
Antigua and Barbuda
Jamaica
Mauritius
Monaco
Maldives
Burundi
Tanzania
Argentina
Sweden
Ireland
Guinea
Liechtenstein
Tonga
Uganda
Serbia
Benin
Guyana
Mexico
Panama
Congo, Rep.
Samoa
Mozambique
Afghanistan
Czech Republic
Haiti
Senegal
Cayman Islands
Angola
Mauritania
Portugal
Costa Rica
Italy
Comoros
Tuvalu
Macao SAR, China
Uruguay
Qatar
Fiji
Montenegro
Zambia
Trinidad and Tobago
Guatemala
Colombia
Eritrea
Bermuda
Liberia
Egypt, Arab Rep.
Equatorial Guinea
Peru
St. Kitts and Nevis
Hungary
Albania
Bolivia
Philippines
Brunei Darussalam
Uzbekistan
Lithuania
Malawi
Germany
Somalia
Cambodia
Nicaragua
Tunisia

如果我在程序运行的时候，想知道某个特定国家，比如A，是否在这个国家列表中，该怎么写程序？

向各位高手请教！
谢过了！