C语言程序设计：编写程序,输入一个正整数,统计该整数的位数并计算其各个数位上的数字之和.

#include int main(){int a,b,i,t;int k = 0,sum = 0;scanf("%d",&a); //输入整数at = a;if(a / 10 == 0){k = 1;sum = a;printf("%d\n",k);printf("%d\n",sum);}else{while(a / 10 != 0){a = a / 10; //每除10,就有...