It was quite hard to get the hang of it, as I didn't have any prior knowledge.

get 在这里是动词，意思是"获得、掌握"。 the 是定冠词，用于特指某个事物或概念。 hang 作为名词时，意思是"诀窍、要领"。 of 是介词，表示所属关系或关联。 get the hang of 是一个固定短语，意思是"掌握...的要领"或"学会...的技巧"。