#include
#include
int main()
{
int i;
int sum=0;
for(i=2;i<=100;i=i+2)
{
sum+=i;
}
printf("2+4+6+...100=%d\n",sum);
}
int i,sum=0;for(i=2;i<=100;i=i+2){ sum=sum+i;}
你没说出语言,给你个VB代码:
s=0
for i=2 to 100 step 2
s=s+i
next i
print s
var s,i:longint;
begin
s:=0;
for i:=1 to 100 do
if i mod 2=0 then
s:=s+i;
writeln(s);
end.