输出:
string str("dsdfasfdfad");
for (string::size_type st = 0; st != str.size(); st++)
{
cout << str[st] << endl;
}
赋值:
int main()
{
string str("dfagrdag");
for (string::size_type st = 0; st != str.size(); st++)
{
str[st] = 'D';
cout << str[st] << endl;
}
return 0;
}