How to define the factorial function in C language recursively?

#How to define the factorial function in c language recursively?

The factorial function in C language is defined recursively:

Open the VC6.0 software and create a new C language project:

2. Next, write the main program. First define the recursive function used to find the factorial and the main function. Define the variable sum in the main function for summing, call the recursive function fact(), and assign the return value to sum. Finally, use printf to print the result of sum. The main program is finished:

3. Finally, run the program and observe the output results. The above is how to write factorial using recursion in C language:

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