How to type capital letters on the mobile phone keyboard? Is it still lowercase after typing?

You can refer to the first adjustment method of vivo mobile phone: first bring up the input method keyboard, then switch to the English input interface (default is lowercase input), click the upward arrow in the lower left corner to enter uppercase English letters , click the upward arrow in the lower left corner twice to lock the input of uppercase English letters, and click the arrow again to switch back to lowercase input.