java编写程序,用while循环100以内-1+1/2-1/3+1/4-……-1/99+1/10
java编写程序,用while循环100以内-1+1/2-1/3+1/4-……-1/99+1/100
{
public static void main(String[] args)
{
int sum = 0;
int jia= 0;
int jian = 0;
for(int i =1; i<=100; i++)
{
if(i % 2 != 0)
{
jia = i+1;
}
else
{
jian = i- 1;
}
}
sum = jia + jian;
System.out.println(sum);
}
}
int a=1;
double s;
while(e){
if(a==100)
break;
if(a%2==1){
s=s+1/(-a);
}else{
s=s+1/a;
}
a=a+1;
}
这样不知错不错追答
int a=1;
double s;
while(true){
if(a==100)
break;
if(a%2==1){
s=s+1/(-a);
}else{
s=s+1/a;
}
a=a+1;
}
这样不知错不错
我试试
本回答被网友采纳java编写程序,用for循环100以内-1+1\/2-1\/3+1\/4-……-1\/99+1\/100
if(i % 2 == 0){ sum += 1\/i;}else { sum -= 1\/i;} } 没有编译器，你回去就按这个思路写吧，写一个1-100的循环，如果i和2取模，为0的时候就是+，不为0的时候就是-。然后用 +=。 你写成sum = sum +1\/i. sum = sum-1\/i 都行 ...
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