map<string,string>m,QWidget *parent) :

QWidget(parent),

ui(new Ui::DiaryLog)

{

ui->setupUi(this);

this->proLabel = ui->portraitLabel;

//加载头像

QPixmap tmpPix;

tmpPix.load(QString::fromStdString(m[userName.toStdString()]));

ui->portraitLabel->setScaledContents(true);

ui->portraitLabel->setPixmap(tmpPix);

//将editwindow的信息书写在diarylog上

QFont font;

font.setFamily(family);

font.setPointSize(pointSize.toInt());

ui->textBrowser->setFont(font);

ui->timeLabel->setText(time);

ui->textBrowser->setText(diary);

//删除某一条diarylog

connect(ui->deleteButton,&QPushButton::clicked,[=](){

databaseInit(userName);

QSqlQuery query(db);

QString deleteString = QString("%1%2%3").arg("'").arg(time).arg("'"); //我思考这行代码思考了20分钟，数据库删除对比的信息如果是字符串要的是单引号！

bool flag = query.exec(QString("DELETE FROM person WHERE time = %1").arg(deleteString));

qDebug()<<flag;

emit this->deleteSignal();

delete this; //删除userwindow中的日记框

});

//进入一条日记的详情

connect(ui->detailButton,&QPushButton::clicked,[=](){

detailWindow = new DetailWindow(diary,time,pointSize,family);

detailWindow->show();

QPropertyAnimation *pPosAnimation3 = new QPropertyAnimation(detailWindow, "pos"); //添加动画

pPosAnimation3->setDuration(550);

pPosAnimation3->setStartValue(QPoint(parent->x(),parent->y()));

pPosAnimation3->setEndValue(QPoint(parent->x()+parent->width(),parent->y()));

pPosAnimation3->setEasingCurve(QEasingCurve::InOutQuad);

pPosAnimation3->start();

});

{

int i;

if(str == "ZYunfei") {i = 0;}

if(str == "1") {i = 1;}

if(str == "NBY") {i = 2;}

db = QSqlDatabase::addDatabase("QSQLITE", QString("myDiary%1").arg(i));

db.setDatabaseName(QString(".//qtDb%1.db").arg(i));

if( !db.open()) //这个db.open相当关键啊！没这一步后面写数据可失败。

{

qDebug() << "无法建立数据库连接";

}

else

{

qDebug()<<"数据库连接成功";

}