160809312 王仲超 三

#include<stdio.h>
int main()
{
    printf("   * * * * * * * * * *\n");
    printf("    * * * * * * * * *\n");
    printf("     * * * * * * * *\n");
    printf("      * * * * * * *\n");
    printf("       * * * * * *\n");
    printf("        * * * * *\n");
    printf("         * * * *\n");
    printf("          * * *\n");
    printf("           * *\n");
    printf("            *\n");
    return 0; 
#include<stdio.h>

int main ()
{
    printf("**********\n");
    printf("**********\n");
    printf("**********\n");
    printf("**********\n");
    printf("**********\n");
    printf("**********\n");
    printf("**********\n");
    printf("**********\n");
    printf("**********\n");
    printf("**********\n");
    return 0;
#include<stdio.h>

int main()
{
    printf("*\n");
    printf("**\n");
    printf("***\n");
    printf("****\n");
    printf("*****\n");
    printf("******\n");
    printf("*******\n");
    printf("********\n");
    printf("*********\n");
    printf("**********\n");
    return 0;
#include <stdio.h> //等级分数 

int main()
{
    char score;
    printf("请输出等级:"); 
    scanf ("%c",&score);//A B C D E 
    switch (score)
  {
    case'A':
    printf ("90~100");
    break;
    case'B':
    printf("80~89");
    break; 
    case'C':
    printf("70~79");
    break;
    case'D':
    printf("60~69");
    break;
    case'E':
    printf("0~59");
    break;
    default:
    printf("输入有误\n");
    break;     
  }
  return 0;
#include<stdio.h> 

int main()
{
    int F=100; 
    int C;
    C=(5*(F-32)/9); 
    printf("%d",C);
    return 0;
#include<stdio.h>

#include<math.h>
int main()
{
    double x;
    double y;
    scanf("%lf",&x);
    if(x>=0)
    y=sqrt(x);
    else
    y=pow(x+1,2)+2*x+1/x;
    printf("f(x)=%f",y);
#include<stdio.h>

int main()
{
    int a,b,c,d;
    a=152;
    b=a/100;
    c=(a/10)%10;
    d=a%10;
    printf("百位是%d 十位是%d 个位是%d",b,c,d);
    return 0;

#include<stdio.h>//求下落距离 
int main()
{
    int t=3;
    int g=10;
    int H;//下落高度 
    H=0.5*g*t*t;
    printf("f(t)=%d",H);
    return 0;    
}

#include <stdio.h>
int main()//电费 
{
   int c ;
   double f;
   scanf("%d",&c);
   if(c<=50)
     {f=0.53*c;}
   else
     {f=50*0.53+(c-50)*0.05;}
   printf("费用为:%lf",f);
   return 0;
}