c++ - 字符串比较很奇怪

Question

我在这里绞尽脑汁:

cout << orig << " * " << count << endl;
string check = multiply2(orig, count);
cout << "Check was: " << check << " and number is: " << number << endl;
cout << "the compare result: " << check.compare(number) <<  endl;
if(check.compare(number) == 0)
{
  cout << "wahoo it matches!!! we did it! " << endl;
}
else
{
  cout << "Doesnt Match " << endl;
}

我期待它匹配并打印 哇哇它匹配!!!我们做到了! 但它却说它不匹配。

这是我的输出:

1 * 900000
Check was: 900000 and number is: 90000
the compare result: 1
Doesnt Match

有人知道为什么他们不匹配吗？

Answer 1

您将 900000(如 9E5 中)与 90000(如 9E4 中)进行比较。计算机是对的。