中文：

对于大陆人来说，购买股票是一种相对常见的投资方式。通过购买股票，投资者可以分享到公司的发展成果，并获得潜在的资本收益。然而，在购买股票之前，投资者应该了解相关的投资知识和风险。

首先，大陆人可以买什么股票？在A股市场，个人投资者可以购买主板、中小板和创业板的股票。此外，还可以通过购买基金、可转债等方式间接投资其他市场。需要注意的是，B股市场的股票是以美元计价的，大陆人需要开通B股账户才能购买。

其次，投资者应该了解股票的基本面和市场走势。基本面包括公司的财务状况、行业前景、管理团队等。市场走势则反映了投资者的预期和情绪，也是投资者决策的重要依据。

最后，投资者应该注意风险控制。股票市场具有较高的波动性，投资者需要做好风险管理，避免盲目跟风和过度交易。

总的来说，大陆人可以购买的股票种类较多，但投资者在购买之前应该了解相关的投资知识和风险。通过合理的投资策略和风险控制，可以获得较好的投资收益。

英文：

For mainland Chinese people, purchasing stocks is a relatively common investment method. By buying stocks, investors can share in the development results of companies and obtain potential capital gains. However, before purchasing stocks, investors should understand relevant investment knowledge and risks.

Firstly, what stocks can mainland Chinese people buy? In the A-share market, individual investors can purchase stocks of the main board, small and medium-sized board, and ChiNext board. In addition, investors can also indirectly invest in other markets by purchasing funds, convertible bonds, and other means. It should be noted that B-share market stocks are priced in US dollars, so mainland Chinese people need to open a B-share account to buy them.

Secondly, investors should understand the fundamentals of stocks and market trends. Fundamentals include the company's financial condition, industry prospects, management team, etc. Market trends reflect investors' expectations and emotions and are also an important basis for investors' decisions.

Finally, investors should pay attention to risk control. The stock market has high volatility, so investors need to manage risks to avoid blind following and excessive trading.

Overall, there are many types of stocks that mainland Chinese people can purchase, but investors should understand relevant investment knowledge and risks before buying them. Through reasonable investment strategies and risk control, investors can obtain good investment returns.