C语言编一个程序求 1+12+123+1234+。。。+N(0〈N〈10)答:void main(){ int a[9]={1,12,123,1234,12345,123456,1234567,12345678,123456789};int n,ans=0;printf("Input a number N(0<N<10):");scanf("%d",&n);while(n<=0||n>=10){ printf("A wrong number ! Input N again :");scanf("%d",&n);} for(int i=0;i<n;i=i+1...
编写一段程序,求两个整数123和456的和,差,积与商,并输出结果c语言答:include<stdio.h> void main(int argc, char *argv[]){ int iNum1,iNum2;printf("请输入二个数:\n");scanf("%d %d",&iNum1,&iNum2);printf("%d+%d=%d\n",iNum1,iNum2,iNum1+iNum2);printf("%d-%d=%d\n",iNum1,iNum2,iNum1-iNum2);printf("%d*%d=%d\n",iNum1,iNum2,...