The specific ways are: 1. The P/E ratio of the Shanghai Composite Index can reflect the valuation level of the index. The higher the P/E ratio, the higher the valuation level of the index.

2. The price-to-book ratio is the market value divided by the net assets, reflecting whether the stock price is too high or too low. The higher the P/B ratio, the higher the valuation level of the index;

3. The marketing rate is the market value divided by the operating income, reflecting the market's response to the future development prospects of the enterprise. The higher the marketing rate, the higher the investor's confidence in the index.

The Shanghai Composite Index is referred to as "Shanghai Composite Index" or "Shanghai Composite Index", and all its sample shares are listed on the Shanghai Stock Exchange, including A shares and B shares.