You are quite alot of years late to start mining with a normal computer, mining with a laptop is a no go as it will not be able to handle all the heat and will be damaged in no time.
For mining Bitcoins (SHA-256) you will need to purchase specialized mining hardware (ASIC's) and for several other coins you will need to invest in GPU rigs or ASIC's aswell, otherwise the electricity costs will exceed your income from mining by alot. (with a laptop you will get a few cents each day max)
So mining is not recommended to use a laptop? If I may ask what I needed to start mining? Whether it requires a large capital? Maybe you can tell me the amount I needed for mining capital
Mining is definetly not recommended with a laptop, it will propably take months or years to mine even a single dollar worth of coins while your laptop will propably not last longer then a week.
What you need and how much capital it costs depends on which coin you plan on mining, you can check out websites like
www.coinmarketcap.com to decide which coins you are interested in.
Pretty much every coin has a base investment of atleast a few hundred dollars to get the hardware needed to start mining. (with a chance of mining at a profit, depending on your electricity costs)