int main(int argc, char *argv[]){
char ch1, ch2;
printf("Input the first character:"); // Line 1
scanf("%c", &ch1);
printf("Input the second character:"); // Line 2
ch2 = getchar();
printf("ch1=%c, ASCII code = %d\n", ch1, ch1);
printf("ch2=%c, ASCII code = %d\n", ch2, ch2);
system("PAUSE");
return 0;}Enter key (ASCII code 13)\n (ASCII code 10)\n
getchar() (ch2 = getchar();Enter key (13)\n
fflush()
voidclear (void){
while ( getchar() != '\n' );}getchar() != '\n''\n''\n'
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