擅长:python、mysql、java
<p>固定代码:</p>
<pre><code>#include <iostream>
using namespace std;
int main()
{
int num;
int sum;
int i;
sum = 0;
cout << "Please enter a positive integer: " << endl;
cin >> num;
// Here you had 1 <= num which was always true for positive num
// and it did not depend on value of i.
for (i = 1; i < num; ++i)
{
sum = sum + i;
cout << i << "+"; // Here you had endl which produced newline characters.
}
cout << num << "=" << sum + num << endl;-
return 0;
}
</code></pre>