编写程序,从键盘上输入3个数,分别给变量a,b,c,求它们的平均值.

include <stdio.h>void main(){ int i; float sum = 0; float v; printf("输入3个数\n"); for(i=0;i<3;i++) { scanf(%f", &v); sum += v; } printf("平均值为%f\n", sum/3);}

printf("b=");scanf("%d",&b);printf("c=");scanf("%d",&c);average=(a+b+c)/3;printf("a,b,c3个数字的平均值：%d",average);}

回答：#include <stdio.h> void main() { double a,b,c; scanf("%lf%lf%lf",&a,&b,&c); printf("总和为%lf,均值为%lf,平方和为%lf\n",a+b+c,(a+b+c)/3.0,a*a+b*b+c*c); }

printf("请输入三个数:");scanf("%d%d%d",&a,&b,&c);sum=a+b+c;d=sum/3;e=a*b*c;if(a>b){ b=min;a=max;if(min>c)min=c;if(max<c)max=c;} else { a=min;b=max;if(min>c)min=c;if(max<c)max=c;} printf("三个数的和%.1f\n",sum);printf("三个数的平均...

include<stdio.h> int main(){ int a,b,c,s;printf("请输入三个整数:");scanf("%d%d%d",&a,&b,&c);s=a+b+c;printf("%d+%d+%d=%d\nav=%f\n",a,b,c,s,s/3.0);getch();return 0;}

C可以这么写——代码文本：include "stdio.h"int main(int argc,char *argv[]){ int x,y,z;printf("Please enter 3 integers...\n");scanf("%d%d%d",&x,&y,&z);printf("They are the average of %g\n",(x+y+z)/3.0);return 0;} ...

int sum = a+b+c;return sum;} // 求平均值 int avg(int a, int b, int c){ int avg = sum(a, b, c)/3;return avg;} // 读取键盘输入的数字 int scan(){ int a = 0;scanf("%d",&a);return a;} int main(){ printf("请输入要进行计算的三个数：\n");int nums[]...

int a = int.Parse(input[0]), b = int.Parse(input[1]), c = int.Parse(input[2]);int value1 = a + b * c;　//计算表达式 Console.WriteLine("a+b*c的计算结果:" + value1.ToString());} catch { Console.WriteLine("用户输入错误!");　//当用户输入非整数时，执行 } } ...

这个程序会计算用户输入的三个整数a、b和c之间的表达式a + b * c，并在控制台上显示计算结果。如果用户输入非整数，程序将捕获异常并输出错误信息。扩展到C#控制台程序的输入输出，除了上述的输入处理，还可以使用Console.ReadKey()获取按键，Console.Read()读取ASCII码，以及Console.Write()和Console....

include "stdio.h"int main(){ float a,b,c,ave;scanf("%f%f%f",&a,&b,&c);ave=(a+b+c)/3;printf("The average is %f.\n",ave);return 0;}