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Qt #Qt #C++

QDomDocument读取XML

MyXmlReader::MyXmlReader(QWidget *parent) : QDialog(parent) { ui.setupUi(this); connect(ui.openBtn, SIGNAL(clicked()), this, SLOT(openFile

Published on 2018-04-18

MFC #MFC #C++

屏蔽背景刷新，在View中添加对WM_ERASEBKGND的响应，直接返回TRUE： BOOL CTEMV1View::OnEraseBkgnd(CDC* pDC) { // TODO: 在此添加消息处理程序代码和/或调用默认值 return TRUE; //return C

Published on 2018-04-18

MFC #MFC #C++

int num; CString str; //int转CString num=10; str.Format(_T("%d"),num); //CString转int str=L"10"; num=_ttoi(str);

Published on 2018-04-18

C++ #算法 #C++

已知两圆圆心坐标和半径，求相交部分面积： #include <iostream> using namespace std; #include<cmath> #include<stdio.h> #define PI 3.141593 struct point//点 { double x,y;

Published on 2018-04-18