7 scanf("%d,%d,%d",&num1,&num2,&num3);/*注意输入格式*/
8 sum=num1+num2+num3; /*求累计和*/
9 aver=sum/3.0; /*求平均值*/
10 printf("num1=%d,num2=%d,num3=%d\n",
num1,num2,num3);
11 printf("sum=%d,aver=%7.2f\n",sum,aver);
12 }
该程序流程如图3.3所示。
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