Novice small white, questions are stupid and hope you forgive me, you are cordially invited to give directions! Thank you

I use is visual studio 2019.

In a project I wrote two programs, but each time you perform debug only execute programs written in the first,
I also found that as long as I put the first out of the project program, a second program can perform, display an error below


And two programs I use function names are not the same,

Excuse me expert predecessors how to solve a problem! Thank you very much

CodePudding user response:

Can you upload all the code

CodePudding user response:

Right-click the project name, set to start the project

CodePudding user response:

1 set to start projects or right start project instance
2. One project seems to be the main function, is to compile the library?

CodePudding user response:

reference 1st floor weixin_40667060 response:

can you upload all the code

project name: 01 helloworld

the first person to program code below :

 
# include 
using namespace std; 

Int main () {

//on the screen display content 
Cout & lt; <"Hello world!" 

system("pause"); 

return 0; 
} 

a second program code below

 
# include 
using namespace std; 

Int main () {

//on the screen display content 
Cout & lt; <"Hello world!" 

system("pause"); 

return 0; 
} 

CodePudding user response:

There can be only one main () function, the second project main should main1 instead

CodePudding user response:

A project corresponding to a complete program, you should create two principles of two programs, if you don't want to, then when debugging a program can be another program all commented,

CodePudding user response:

In the past so long the building should be solved... But the reason for the error is only one main function inside a project if to write two programs need to create a new project

CodePudding user response:

You can right-click the first uninstall program, debugging is the second

CodePudding user response:

Only one main function in a project

CodePudding user response:

Mail to switch the startup project