官方语文是在立法、司法和行政等领域使用的正式语文。在大多数的国家和地区,政府只认可一种官方语文;而在一些多语制的国家和地区,政府也可能确认不止一种语言为官方语文。澳门是一个典型的多语地区。然而,长期以来,由于葡萄牙人实际上行使着管治澳门的权力,他们独尊葡文,排斥中文。澳门政府虽然从来没有以立法的形式明确宣布葡文为澳门的官方语文,但事实上早已形成葡文为澳门的唯一官方语文的局面。中葡联合声明明 Official languages ​​are the official languages ​​used in the legislative, judicial and administrative fields. In most countries, the government recognizes only one official language; in some multi-lingual countries, the government may also confirm that more than one language is the official language. Macau is a typical multilingual area. However, for a long time, as the Portuguese actually exercised the power to govern Macao, they were only speaking Portuguese and excluded Chinese. Although the Macao government has never explicitly proclaimed the Portuguese as the official language of Macao in the form of legislation, in fact it has already formed the only official language where Portuguese is Macao. Sino-Portuguese Joint Declaration