vector使用erase()需要小心。。。。。。。

vector<double> testclear;
for (i=1;i<=5;i++)
{
testclear.push_back(i);
}
cout<<"Before erase() the size is "<<testclear.size()<<endl;

/////////////////////////////////////

vector<double>::iterator itclear;
for (itclear=testclear.begin();itclear!=testclear.end();itclear++)
{
cout<<"The size of testclear is "<<testclear.size()<<endl;
cout<<"Before erase() pointer is "<<*itclear<<endl;
itclear=testclear.erase(itclear);
cout<<"After erase() pointer is "<<*itclear<<endl;
}

简直就是反面教程！！！！！！！！！！！！！！！！！！！