Update 更新文档

cleaned_source_code/Sqbase/qdbmanagement.cpp

@@ -0,0 +1,68 @@
+#include "qdbmanagement.h"
+QDBManagement::QDBManagement(QObject* parent)
+    : QObject(parent)
+{
+}
+void QDBManagement::initConnect(QString db, QString pwd)
+{
+    QSqlError error;
+    if (db == nullptr)
+        db = "tradedata";
+    if (pwd == nullptr)
+        pwd = "Kexin2008";
+    m_Database = QSqlDatabase::addDatabase("QMYSQL");
+    m_Database.setHostName("localhost");
+    m_Database.setUserName("root");
+    m_Database.setDatabaseName(db);
+    m_Database.setPassword(pwd);
+    m_Database.setPort(3306);
+    error = m_Database.lastError();
+    if (error.isValid()) 
+    {
+        switch (error.type()) {
+        case QSqlError::NoError:
+            qDebug() << "无错误";
+            break;
+        case QSqlError::ConnectionError: 
+            qDebug() << error.text();
+            break;
+        case QSqlError::StatementError: 
+            qDebug() << error.text();
+            break;
+        case QSqlError::TransactionError: 
+            qDebug() << error.text();
+            break;
+        default: 
+            qDebug() << error.text();
+            break;
+        }
+    }
+    if (!m_Database.open()) {
+        qDebug() << "Database not open!";
+    }
+}
+void QDBManagement::selectStockList(QVector<StockInfo>& list)
+{
+    QSqlQuery query;
+    QString sql = "select * from auto_stocklist";
+    query.exec(sql);
+    while (query.next()) {
+        StockInfo stock;
+        stock.strCode = query.value(1).toString();
+        stock.strName = query.value(2).toString();
+        stock.fcurPrice = query.value(3).toFloat();
+        stock.fShare = query.value(4).toFloat();
+        list.push_back(stock);
+    }
+}
+void QDBManagement::selectStockKofDay(QString strCode, std::vector<double>& KList)
+{
+    QString table = "r_" + strCode.mid(3);
+    QSqlQuery query;
+    QString sql = "select * from " + table;
+    query.exec(sql);
+    while (query.next()) {
+		double dataP;
+        KList.push_back(query.value(3).toFloat());
+    }
+}