C语言程序设计实验指导_颜晖_主_....doc

C语言程序设计部分实验参考答案

实验2

#include

int main(){//2-1-2

int c,f=150;

c=f*5/9-32*5/9;

printf("fahr=%d, celsius=%d\n",f, c);

return 0;

}

#include

int main(){//2-1-3

int c=26,f;

f=c*9/5+32;

printf("celsius=%d, fahr=%d\n",c, f);

return 0;

}

#include

int main(){//2-1-4

int math=87,eng=72,comp=93;

printf("math=%d, eng=%d, comp=%d, average=%d\n",math, eng, comp, (math+eng+comp)/3);

return 0;

}

#include

int main(){//2-1/5

int n=152,a,b,c;

c=n%10;

b=(n/10)%10;

a=n/100;

printf("整数%d 的个位数字是%d, 十位数字是%d, 百位数字是%d\n",n, c, b, a);

return 0;

}

#include

int main(){//2-1-6

int x=3,y;

y=x*x;

printf("%d=%d*%d\n",y,x,x);

printf("%d*%d=%d\n",x,x,y);

return 0;

}

#include

int main(){//2-2-1

double x, y;

printf("Enter x:");

scanf_s("%lf",&x);

if(x!=0){

y=1/x;

}else{

y=0;

}

printf("f(%.2f)=%.1f\n",x,y);

return 0;

}

#include

int main(){//2-2-2

int celsius, fahr;

fahr=100;

celsius=5*(fahr-32)/9;

printf("fahr=%d, celsius=%d\n",fahr,celsius);

return 0;

}

#include

int main(){//2-2-3

double money, rate,x=1.0;

int i,year;

printf("Enter money, year and rate:");

scanf("%lf %d %lf",&money,&year,&rate);

for(i=1;i<=year;i++)

x=x*(1+rate);

printf("intrest=%.2f\n",money*x-money);

return 0;

}

#include

#include

int main(){//2-2-4

double x, y;

printf("Enter x");

scanf_s("%lf",&x);

if(x<0.0)

y=pow(x+1,2)+2*x+1/x;

else

y=sqrt(x);

printf("f(%.2f)=%.2f\n",x,y);

return 0;

}

#include

#include

int main(){//2-2-5

double x, y;

printf("Enter x:");

scanf_s("%lf",&x);

if(x==10)

y=1/x;

else

y=x;

printf("f(%.2f)=%.1f\n",x,y);

return 0;

}

#include

int main(){//2-2-6

int x, y;

printf("Enter num1:");

scanf_s("%d",&x);

printf("Enter num2:");

scanf_s("%d",&y);

printf("%d+%d=%d\n",x,y,x+y);

printf("%d-%d=%d\n",x,y,x-y);

printf("%d*%d=%d\n",x,y,x*y);

printf("%d/%d=%d\n",x,y,x/y);

printf("%d%%d=%d\n",x,y,x%y);

return 0;

}

#include