(1)
#include<stdio.h>
int main()
{ int a,b,c,i;
double s;
a=1;b=1;c=0;d=1;s=0;
for(i=1;i<=10;i++)
{
c=a+b;
b=a;
a=c;
s=s+(a+0.0)/b;
printf("%f ",s);
}
printf("\n结果是:%f",s);
}
(2)
#include<stdio.h>
int main()
{
float a,b,c,i;
double s;
i=1;a=1;b=1;s=0;
while(i<=10)
{
c=a+b;
a=b;
b=c;
i++;
s+=b/a;
printf("%f\n",s);
}
printf("%f",s);
}
(3)
#include<stdio.h>
int main()
{
float a,b,c,i;
double s;
i=1;a=1;b=1;s=0;
do
{
c=a+b;
a=b;
b=c;
i++;
s+=b/a;
printf("%f\n",s);
}
while(i<=10);
printf("%f",s);
}