Hello in Japanese. How to say it in Chinese?

As long as it's not available in the morning and evening: Kony Seven Digs. Romaji is kon ni chi ha.

The greeting in the morning is usually: Oh, ha, yo. The last one is a little longer. Romaji is o ha yo u.

Good evening, yes: digging in the empty class. Romaji is kon ban ha.

Although the above is the white character of Chinese characters, as long as you don't read the tone of Chinese characters, the basic pronunciation is no problem and the Japanese can understand it.