Could you tell me how to modify the program is right, is the problem for several times, hope to give specific modify the program, a beginner, a rookie, comment, thank you,

CodePudding user response:

Put the definition of a custom function before the main function can
Can also be a custom function declarations in the main function before

CodePudding user response:

In the int main (void) in the front of the additional
Void my_strcpy (char * ch, char * dest);//add a function declaration