Do I have to wear a suit to the interview? Is this required by the employer?

General companies pay great attention to the image of their own companies! And the image of the company is accumulated by everyone, maybe your leisure has destroyed the image of the whole company! I don't advise you to wear casual clothes! Because you can't go wrong in a formal interview!

I suggest you wear a shirt+a pair of pants+shoes+tie! This shirt should be light. Pants should be dark in color, light on the top and dark on the bottom. Never wear white socks, wear dark ones, and the color of leather shoes is close to that of pants! You'd better wear a red tie. It looks very energetic!

Go to the interview company 15 minutes in advance, and calm down and wash your face! Don't sweat during the interview! Simply say so much!