1 #include <stdio.h>
 2 #include <stdlib.h>
 3 #include <conio.h>
 4 
 5 int main(int argc, char* argv[])
 6 {
 7     int nAddend = 0, nSummand = 0;
 8     printf("Hello Console!\n--------\n");
 9     char chTemp = 0;
10 
11     while(chTemp < ‘0‘ || chTemp >‘9‘)
12     {
13         printf("请输入加数： \n");
14         chTemp = getch();
15     }
16     printf("%c\n",chTemp);
17 
18     nAddend = 0;
19     while(chTemp <‘0‘ || chTemp > ‘9‘)
20     {
21         printf("请输入被加数：\n");
22         chTemp = getch();
23     }
24     printf("%c \n",chTemp);
25     nSummand = chTemp - ‘0‘;
26 
27     printf("计算结果为 ：\n%d + %d = %d \n",nAddend,nSummand,nAddend + nSummand);
28 
29     system("pause");
30 
31     return 0;
32 
33 }