c语言编写一个程序,非常简单答:(1)include "stdio.h"#include "math.h"int main(int argc,char *argv[]){float m,r;int n;printf("Please input, the number of the principal and interest rates in turn.\n");if(scanf("%f,%d,%f",&m,&n,&r)!=3 || m<0 || n<0 || r<0){printf("Input error, exit...