How to solve the problem of scanf compilation error in Visual Studio

First use visual stdio My little baiken must encounter such a problem
How should we solve this problem
1. The first step is to find the attribute
2. Find a choice The preprocessor , Click the part indicated by the red arrow , Click edit

3. Add the following code under the definition of preprocessing **_CRT_SECURE_NO_WARNINGS** that will do , Click ok

PS：
1. If you encounter the red letter of system exception , Remember to turn off the real-time scanning of McAfee brought by Lenovo ！
2. Just use my method , use scanf_s The method of is not recommended , Because this writing method is wrong under other compilers ！