#include?<stdio.h>
/*?考慮一下哪個(gè)輸出該用無參函數(shù)哪個(gè)輸出該用有參函數(shù)呢？?*/
int?learning()
{
????printf("%s\n","小明在慕課網(wǎng)上學(xué)習(xí)");
????return?0;
}???
int?number?(int?n)
{
????printf("小明在慕課網(wǎng)上已經(jīng)學(xué)習(xí)了%d門課程"，n);
????return?0;
}???
?
?
?
int?main()
{
????learning();
????number(5);
????return?0;
}