Introduction - If you have any usage issues, please Google them yourself
Create a text file, the file name input by the user using the keyboard, enter a keyword with no spaces, statistical output keyword occurrences in the text.
The design requirements of the project can be divided into two parts to achieve: First create a text file, the file name entered by the user using the keyboard no spaces and then enter a keyword, statistical output of the number of occurrences of the word in the text.