The simplest method will be clearly marked in the fund name. The names of graded funds must have the words "graded" or "A/B", while ordinary funds do not have these keywords.

If you don't know much about it, I suggest you ask the service manager of the account opening institution. I opened an account with Huatai Securities, and they have a vip channel commission fee, which is the lowest among several securities companies I know. I have known this service manager for several years, and the service is very good. Basically, whenever you contact him, you will reply. If you want to know about the stock market or open an account, you can add him to WeChat to ask ~