open https://www.jetbrains.com/shop/eform/students ,like this
1.Open the URL we provided，click the first button(get email address), then click the second button(copy adress).Now you have copied edu email adress
2.Paste into the red area of Figure 1.Other information in Figure 1 can be filled in freely and submit
3.Wait for a while and click the third button(refress) to get mail.The activation link is in the email
4.Click the activation link , then you will be asked to sign up for a JetBrains Account.
You will need to use this account whenever you want to access JetBrains tools.