程序填空 以下程序的功能是根据输入的y(Y)与 n(N),在屏幕上分别显示出“This is YES.”与“This is N0.”,请填空。 #include
void YesN0(char ch){ switch(ch){ case 'y':case 'Y':printf("This is YES.\n"); (1) ; case 'n':case 'N':printf("This is N0.\n"); } } int main(){ char ch; printf("\nEnter a char 'y','Y','n','N':"); ch= (2) ; YesN0(ch); return 0; }