diff --git a/CurrencyModel/CurrencyModel.pro b/CurrencyModel/CurrencyModel.pro
new file mode 100644
index 0000000..35cedcf
--- /dev/null
+++ b/CurrencyModel/CurrencyModel.pro
@@ -0,0 +1,20 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2014-11-21T19:28:10
+#
+#-------------------------------------------------
+
+QT += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = CurrencyModel
+TEMPLATE = app
+
+
+SOURCES += main.cpp\
+ currencymodel.cpp
+
+HEADERS += currencymodel.h
+
+FORMS += currencymodel.ui
diff --git a/CurrencyModel/CurrencyModel.pro.user b/CurrencyModel/CurrencyModel.pro.user
new file mode 100644
index 0000000..0362370
--- /dev/null
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diff --git a/CurrencyModel/currencymodel.cpp b/CurrencyModel/currencymodel.cpp
new file mode 100644
index 0000000..b1637f7
--- /dev/null
+++ b/CurrencyModel/currencymodel.cpp
@@ -0,0 +1,70 @@
+#include "currencymodel.h"
+#include "ui_currencymodel.h"
+
+CurrencyModel::CurrencyModel(QWidget *parent) :
+ QAbstractTableModel(parent),
+ ui(new Ui::CurrencyModel)
+{
+}
+
+CurrencyModel::~CurrencyModel()
+{
+ delete ui;
+}
+
+void CurrencyModel::setCurrencyMap(const QMap &map)
+{
+ currencyMap = map;
+}
+
+int CurrencyModel::rowCount(const QModelIndex &parent) const
+{
+ return currencyMap.count();
+}
+int CurrencyModel::columnCount(const QModelIndex &parent) const
+{
+ return currencyMap.count();
+}
+
+//role为角色，不同的角色执行不同的动作,通过索引index来进行数据的读取
+QVariant CurrencyModel::data(const QModelIndex &index, int role) const
+{
+ if (!index.isValid()) {
+ return QVariant();
+ }
+
+ //返回于数字匹配的对其模式
+ if (role == Qt::TextAlignmentRole) {
+ return int(Qt::AlignRight | Qt::AlignVCenter);
+ } else if (role == Qt::DisplayRole) { //否则，返回数据
+ QString rowCurrency = currencyAt(index.row());
+ QString columnCurrency = currencyAt(index.column());
+
+ //0不能被除
+ if (currencyMap.value(rowCurrency) == 0.0) {
+ return "####";
+ }
+
+ double amount = currencyMap.value(columnCurrency)
+ / currencyMap.value(rowCurrency);
+
+ return QString("%1").arg(amount, 0, 'f', 4);
+ }
+
+ return QVariant();
+}
+
+//用于对其边框的头列和头行
+QVariant CurrencyModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+ if (role != Qt::DisplayRole) {
+ return QVariant();
+ }
+
+ return currencyAt(section);
+}
+
+QString CurrencyModel::currencyAt(int offset) const
+{
+ return (currencyMap.begin() + offset).key();
+}
diff --git a/CurrencyModel/currencymodel.h b/CurrencyModel/currencymodel.h
new file mode 100644
index 0000000..8934757
--- /dev/null
+++ b/CurrencyModel/currencymodel.h
@@ -0,0 +1,34 @@
+#ifndef CURRENCYMODEL_H
+#define CURRENCYMODEL_H
+
+#include
+#include
+
+namespace Ui {
+class CurrencyModel;
+}
+
+class CurrencyModel : public QAbstractTableModel
+{
+ Q_OBJECT
+
+public:
+ explicit CurrencyModel(QWidget *parent = 0);
+ ~CurrencyModel();
+
+ void setCurrencyMap(const QMap &map);
+ int rowCount(const QModelIndex &parent) const;
+ int columnCount(const QModelIndex &parent) const;
+ QVariant data(const QModelIndex &index, int role) const;
+ QVariant headerData(int section, Qt::Orientation orientation, int role) const;
+
+private:
+ QString currencyAt(int offset) const;
+
+ QMap currencyMap;
+
+private:
+ Ui::CurrencyModel *ui;
+};
+
+#endif // CURRENCYMODEL_H
diff --git a/CurrencyModel/currencymodel.ui b/CurrencyModel/currencymodel.ui
new file mode 100644
index 0000000..b9affd3
--- /dev/null
+++ b/CurrencyModel/currencymodel.ui
@@ -0,0 +1,20 @@
+
+ CurrencyModel
+
+
+
+ 0
+ 0
+ 400
+ 300
+
+
+
+ CurrencyModel
+
+
+
+
+
+
+
diff --git a/CurrencyModel/main.cpp b/CurrencyModel/main.cpp
new file mode 100644
index 0000000..40a178c
--- /dev/null
+++ b/CurrencyModel/main.cpp
@@ -0,0 +1,35 @@
+#include "currencymodel.h"
+#include
+#include
+
+int main(int argc, char *argv[])
+{
+ QApplication a(argc, argv);
+
+ QMap currencyMap;
+ currencyMap.insert("AUD", 1.3259);
+ currencyMap.insert("CHF", 1.2970);
+ currencyMap.insert("CZK", 24.510);
+ currencyMap.insert("DKK", 6.2168);
+ currencyMap.insert("EUR", 0.8333);
+ currencyMap.insert("GBP", 0.5661);
+ currencyMap.insert("HKD", 7.7562);
+ currencyMap.insert("JPY", 112.92);
+ currencyMap.insert("NOK", 6.5200);
+ currencyMap.insert("NZD", 1.4697);
+ currencyMap.insert("SEK", 7.8180);
+ currencyMap.insert("SGD", 1.6901);
+ currencyMap.insert("USD", 1.0000);
+
+ CurrencyModel w;
+ w.setCurrencyMap(currencyMap);
+
+ QTableView tableView;
+ tableView.setModel(&w);
+ tableView.setAlternatingRowColors(true);
+
+ tableView.setWindowTitle(QObject::tr("Currencies"));
+ tableView.show();
+
+ return a.exec();
+}