Error: Launch failed.Bianry not found

A program file was not specified in the launch configuration

The solution to the above error is to build the project first. Specifically, press Ctrl+B at the same time, or press the button circled in the red box in the figure.

Then press the Run button again, and the program can be executed normally. As shown in the figure below, the content enclosed by the red frame is the execution result of the program.

The full text is over.