11-26汽车销售法律培训final.ppt

输入两个实数,按代数值由小到大的顺序输出这两个数。(P87,)

#include<>
int main()
{ float a,b,t;
printf("请输入两个实数:");
scanf("%f,%f",&a,&b);
if(a>b)
{t=a;
a=b;
b=t;
}
printf("%,%\n",a,b);
return 0;
}
输入3个数a,b,c,要求按由小到大的顺序输出。(P88,)

#include<>
int main()
{ float a,b,c,t;
printf("请输入三个实数:");
scanf("%f,%f,%f",&a,&b,&c);
if (a>b)
{
t=a;
a=b;
b=t;
}
if (a>c)
{
t=a;
a=c;
c=t;
}
if (b>c)
{
t=b;
b=c;
c=t;
}
printf("%,%,%",a,b,c);
return 0;
}
P86
#include<>
#include<>
int main()
{double a,b,c,disc,x1,x2,p,q;
scanf("%lf,%lf,%lf",&a,&b,&c);
disc=b*b-4*a*c;
if(disc<0)
printf("This equation hasn't real roots\n");
else
{p=-b/(*a);
q=sqrt(disc)/(*a);
x1=p+q;x2=p-q;
printf("real roots:\nx1=%\nx2=%\n",x1,x2);

}
return 0;
}
4、P82第一题
#include <>
#include <>
int main()
{
float p,r,n;
r=;n=10;p=pow(1+r,n);
printf("p=%f\n",p);
return 0;
}
5、P99

#include<>
int main()
{ char ch;
scanf("%c",&ch);
ch=(ch>='A'&&ch<='Z')?(ch+32):ch;
printf("%c\n",ch);
return 0;
}
6、P100

#include<>
int main()
{
int x,y;
scanf("%d",&x);
if(x<0)
y=-1;
else
if(x==0) y=0;
else y=1;
printf("x=%d,y=%d\n",x,y);
return 0;
}

7、P15第六题
#include <>
int main()
{
int a,b,c,max;
printf("please input a,b,c:\n");
scanf("%d,%d,%d",&a,&b,&c);
max=a;
if (max<b)
max=b;
if (max<c)
max=c;
printf("The largest number is %d\n",max);
return 0;
}
8、P84第七题
#include <>
int main ()
{
float h,r,l,s,sq,vq,vz;
float pi=;
printf("请输入圆半径r,圆柱高h:");
scanf("%f,%f",&r,&h);
l=2*pi*r;
s=r*r*pi;
sq=4*pi*r*r;
vq=*pi*r*r*r;
vz=pi*r*r*h;
printf("圆周长为:l=%\n",l);
printf("圆面积为:s=%\n",s);
printf("圆球表面积为:sq=%\n",sq);
printf("圆球体积为:v=%\n",vq);
printf("圆柱体积为:vz=%\n",vz);
return 0;
}
9、P112第六题
#include <stdio.