win10上atom使用string头文件后输出结果是空白

#include
#include
int main()
{
using namespace std;
char charr1[20];
char charr2[20] = “jaguar”;
string str1;
string str2 = “panther”;

cout << "Enter a kind of feline: ";
cin >> charr1;
cout << "Enter another kind of feline: ";
cin >> str1;
cout << "Here are some felines:\n";
cout << charr1 << " " << charr2 << " "
     << str1 << " " << str2
     << endl;
cout << "The third letter in " << charr2 << " is "
     << charr2[2] << endl;
cout << "The third letter in " << str2 << " is "
     << str2[2] << endl;

return 0;

}
代码没有问题
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