Interest is the attitude and tendency of individuals to approach, explore something and engage in certain activities, also known as "hobby", which is a manifestation of personality tendency. Interest plays an important role in people's psychological behavior. When people's interests point to professional activities, they form people's professional interests. Vocational interest has an important influence on people's professional activities. A job that suits your interests can often bring you pleasure and satisfaction. When choosing a career, people always take whether they are interested in it as one of the considerations. Starting from fun, gradually form a more stable and lasting fun, and then combine your own lofty goals to form an interest with clear direction and will. This is an interest development stage that follows "fun-fun-interest".