int main()
{
void quater_sales(void)
{
int i, j, choice;
int sum = 0;
printf("Please enter the quarter number(1.1Q2.2.Q3.3Q4.4Q:");
choice = getchar() - '0';
while (getchar() != '\n');
choice--;
for (i = 0; i < 4; i++)
for (j = 0; j < 3; j++)
sum = sum + sale[i][j][choice];
printf("%d quarter sales are %d". \n", choice, sum);
}
It's a function to find out the quarterly sales volume, while(getchar()!="\n"); here, I changed "\n" to "\n", and the phenomenon that I received the branch number and stopped was corrected, but I wonder what's the difference between the two.
c
"" is usually used to refer to the string ' ' is usually used to refer to char
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