Visual c++ c program creation and link execution failure processing (notes)

1. Create a new c program (if you have already read 2 directly)

1. Click "File" in the upper right corner and click "New".
   

Click "Project" and select "win32 Console Application".
Name and confirm.

Select "an empty project".

3. Click New to create a "C++ Source File".
Name the file.
3. Write a simple code,

compile and
link
execution

2 possible errors

1 Compilation is successful but link error

Solution:
1 It is possible that the program is running and the compiler cannot rewrite the file. Open the task manager to see if there is a process for the file. If so, end it.
Task Manager: Ctrl+Shift+Esc.
3. Run as an administrator (the solution is the best)
2. It may be that the directory configuration is incorrect when compiling, but I still don't know how to solve it [dog head]


2. Create a new c++ file in the same project, but it prompts that the link is wrong.

Reason: A project in C language can only have one main function.

Solution: Create a new project or delete the original file.