1: #include <QtCore/QCoreApplication> 2: #include <iostream> 3: #include <stdio.h> 4: using namespace std; 5: int main() 6: { 7: QString str2; 8: str2.sprintf("Ggicci is %d years old, and majors in %s.", 20, "Software Eng"); 9: cout << str2.toStdString() << ...
static inline typename std::enable_if<QtPrivate::FunctionPointer<Func2>::ArgumentCount == -1, QMetaObject::Connection>::type connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal, Func2 slot) { return connect(sender, signal, sender, std::move(slot), Qt::...
using namespace std; int main( ) { double a=123.456,b=3.14159,c=-3214.67; cout<<setiosflags(ios::fixed) //设置浮点数以定点小数形式输出 <<setiosflags(ios::right) //设置数据在输出域右对齐 <<setprecision(2); //设置浮点数以定点输出时保留两位小数位数 cout<<setw(10)<<a<<endl; //设置a...
using namespace std; //宏定义 #define SLOT(a) #a #define SIGNAL(a) #a #define cpp_slots #define cpp_signals protected #define cpp_emit class Object; //元对象系统,负责搜集信号与槽的名称 struct MetaObject { //信号组 const char * signal; //槽组 const char * slot; //激活某个信号,i...
using namespace std; int main(int argc,char **argv) { QCoreApplication app(argc,argv); QFile file("binary.file"); file.open(QIODevice::WriteOnly|QIODevice::Truncate); QDataStream out(&file); out< out< out<<(qint32)21;
using namespace std; class MutexWaitCondition { public: MutexWaitCondition(); public : //预计生产(或消费)数量 int loopCount; //当前产品数量 int product; //仓库能容纳最大产品数量 int capacity; QMutex mutex; //QWaitCondition类为线程同步提供了一个条件变量,此处设置条件 ...
using namespace std; int main(int argc,char **argv) { QCoreApplication app(argc,argv); QFile file("binary.file"); file.open(QIODevice::WriteOnly|QIODevice::Truncate); QDataStream out(&file); out< out< out<<(qint32)21;
using namespace std; //判断进程是否存在 BOOL IsExistProcess(const char* szProcessName) { PROCESSENTRY32 processEntry32; HANDLE toolHelp32Snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); if (((int)toolHelp32Snapshot) != -1) ...
(60000); // 1-minute timerusing namespace std::chrono;startTimer(milliseconds(50));startTimer(seconds(1));startTimer(minutes(1));// since C++14 we can use std::chrono::duration literals, e.g.:startTimer(100ms);startTimer(5s);startTimer(2min);startTimer(1h); }void MyObject::timerEvent(...
usingnamespacestd; #include<opencv2/imgcodecs.hpp> //imread、imwrite函数所在的头文件 #include<opencv2/highgui.hpp> //imshow、namedWindow、waitKey函数所在的头文件 usingnamespacecv; intmain { Mat img=imread("../6_10/lena.jpg"); if(!img.data) ...