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Re:我晕了,找了好多遍不知道哪错,帮看看,谢谢In Reply To:我晕了,找了好多遍不知道哪错,帮看看,谢谢 Posted by:omepu at 2006-01-04 16:16:35 > 用的C++,但是cout<<setpresicion(2)<<sumn<<endl;不好使。
>
> 现在这个样子帮我看看哪不行啊?
>
> #include <iostream>
> using namespace std;
>
> int main()
> {
> double sumn = 0 , month;
> int i = 1;
> while (i <= 12)
> {
> cin >> month;
> sumn = sumn + month;
> ++i;
> }
> sumn = sumn / i + 0.05;
> printf("$%.2f\n" , sumn);
> return 0;
> }
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