新增存款计算器

moneytool/widget.cpp

@@ -0,0 +1,50 @@
+#pragma execution_character_set("utf-8")
+#include "widget.h"
+#include "ui_widget.h"
+#include "qmessagebox.h"
+#include "qdebug.h"
+
+Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget)
+{
+    ui->setupUi(this);
+}
+
+Widget::~Widget()
+{
+    delete ui;
+}
+
+void Widget::on_btnOk_clicked()
+{
+    //当前多少钱
+    int moneyCurrent = ui->txtMoneyCurrent->text().toInt();
+    //利息
+    float rate = ui->txtRate->text().toFloat();
+    //定期期限
+    int year = ui->cboxYear->currentText().left(1).toInt();
+    //总年份 必须是定期期限的倍数
+    int years = ui->txtYears->text().toInt();
+    //最终多少钱
+    int moneyAll = 0;
+
+    if (years % year != 0) {
+        ui->txtYears->setFocus();
+        QMessageBox::critical(this, "错误", "总年份必须是期限的整数倍数!");
+        return;
+    }
+
+    if (ui->cboxType->currentIndex() == 0) {
+        //傻瓜场景 直接计算
+        moneyAll = moneyCurrent + (moneyCurrent * rate * years);
+    } else {
+        //真实场景 复利计算
+        int count = years / year;
+        for (int i = 0; i < count; ++i) {
+            moneyCurrent = moneyCurrent + (moneyCurrent * rate * year);
+        }
+        moneyAll = moneyCurrent;
+    }
+
+    //计算下来3年期定期存款30年总金额翻2番到最初本金3倍 100W本金3年期自动续期30年=321W
+    ui->txtMoneyAll->setText(QString::number(moneyAll));
+}