From 43de6f5acb1222079908cbeeeb41c3c6025224a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E4=BD=B3=E5=AA=9B?= <2487706653@qq.com>
Date: Wed, 9 Oct 2024 23:15:47 +0800
Subject: [PATCH] =?UTF-8?q?=E9=99=88=E4=BD=B3=E5=AA=9B=E7=AC=AC=E4=B8=80?=
=?UTF-8?q?=E6=AC=A1=E6=8F=90=E4=BA=A4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
---
UML.iml | 11 ---
src/Calculator6218.java | 200 ----------------------------------------
src/Main.java | 15 ---
3 files changed, 226 deletions(-)
delete mode 100644 UML.iml
delete mode 100644 src/Calculator6218.java
delete mode 100644 src/Main.java
diff --git a/UML.iml b/UML.iml
deleted file mode 100644
index 37cc804..0000000
--- a/UML.iml
+++ /dev/null
@@ -1,11 +0,0 @@
-
-
-
-
-
-
-
-
-
-
-
\ No newline at end of file
diff --git a/src/Calculator6218.java b/src/Calculator6218.java
deleted file mode 100644
index 0191cb9..0000000
--- a/src/Calculator6218.java
+++ /dev/null
@@ -1,200 +0,0 @@
-
-import javafx.application.Application;
-import javafx.geometry.Insets;
-import javafx.geometry.Pos;
-import javafx.scene.Scene;
-import javafx.scene.control.Button;
-import javafx.scene.control.TextField;
-import javafx.scene.layout.*;
-import javafx.stage.Stage;
-
-import java.util.Stack;
-
-public class Calculator6218 extends Application {
- private TextField display;
- private StringBuilder currentInput = new StringBuilder();
-
- public static void main(String[] args) {
- launch(args);
- }
-
- @Override
- public void start(Stage primaryStage) {
- VBox root = getRoot();
- Scene scene = new Scene(root, 300, 400);
- primaryStage.setTitle("计算器");
- primaryStage.setScene(scene);
- primaryStage.show();
- }
-
- private VBox getRoot() {
- // 显示区域
- display = new TextField("0");
- display.setEditable(false);
- display.setAlignment(Pos.CENTER_RIGHT);
- display.setStyle("-fx-font-size: 24; -fx-background-color: #FFFFFF; -fx-border-color: #000000;");
-
- // 按钮布局
- GridPane buttonGrid = new GridPane();
- buttonGrid.setPadding(new Insets(10));
- buttonGrid.setHgap(10);
- buttonGrid.setVgap(10);
-
- // 创建按钮
- String[] buttonLabels = {
- "%", "CE", "C", "×",
- "1/x", "x²", "√", "÷",
- "7", "8", "9", "-",
- "4", "5", "6", "+",
- "1", "2", "3", "=",
- "+/-", "0", "."
- };
-
- int index = 0;
- for (int row = 0; row < 5; row++) {
- for (int col = 0; col < 4; col++) {
- Button button = new Button(buttonLabels[index]);
- button.setMinSize(50, 50);
- button.setOnAction(event -> handleButtonClick(button.getText()));
- buttonGrid.add(button, col, row);
- index++;
- }
- }
-
- // 主布局
- VBox root = new VBox(10);
- root.setPadding(new Insets(20));
- root.getChildren().addAll(display, buttonGrid);
- return root;
- }
-
- private void handleButtonClick(String buttonText) {
- // 处理按钮点击
- switch (buttonText) {
- case "C":
- display.setText("0");
- currentInput.setLength(0);
- break;
- case "CE":
- currentInput.setLength(0);
- display.setText("0");
- break;
- case "=":
- try {
- double result = evaluateExpression(currentInput.toString());
- display.setText(String.valueOf(result));
- currentInput.setLength(0);
- currentInput.append(result);
- } catch (Exception e) {
- display.setText("错误");
- }
- break;
- case "+":
- case "-":
- case "×":
- case "÷":
- case "√":
- case "x²":
- case "1/x":
- currentInput.append(convertOperator(buttonText));
- display.setText(currentInput.toString());
- break;
- default:
- currentInput.append(buttonText);
- display.setText(currentInput.toString());
- break;
- }
- }
-
- private String convertOperator(String operator) {
- switch (operator) {
- case "×":
- return "*";
- case "÷":
- return "/";
- case "√":
- return "Math.sqrt(";
- case "x²":
- return "^(2)";
- case "1/x":
- return "(1/(";
- default:
- return operator;
- }
- }
-
- private double evaluateExpression(String expression) throws Exception {
- // 使用简单的后缀表达式来评估表达式
- String[] tokens = expression.split("(?<=[-+*/()])|(?=[-+*/()])");
- Stack values = new Stack<>();
- Stack operations = new Stack<>();
-
- for (String token : tokens) {
- if (isNumeric(token)) {
- values.push(Double.parseDouble(token));
- } else if (isOperator(token)) {
- while (!operations.isEmpty() && precedence(token) <= precedence(operations.peek())) {
- double b = values.pop();
- double a = values.pop();
- String op = operations.pop();
- values.push(applyOperation(a, b, op));
- }
- operations.push(token);
- }
- }
-
- while (!operations.isEmpty()) {
- double b = values.pop();
- double a = values.pop();
- String op = operations.pop();
- values.push(applyOperation(a, b, op));
- }
-
- return values.pop();
- }
-
- private boolean isNumeric(String str) {
- return str.matches("-?\\d+(\\.\\d+)?");
- }
-
- private boolean isOperator(String str) {
- return str.equals("+") || str.equals("-") || str.equals("*") || str.equals("/") ||
- str.equals("√") || str.equals("x²") || str.equals("1/x");
- }
-
- private int precedence(String operator) {
- switch (operator) {
- case "+": case "-":
- return 1;
- case "×": case "÷":
- return 2;
- case "√": case "x²":
- return 3;
- default:
- return 0;
- }
- }
-
- private double applyOperation(double a, double b, String operator) throws Exception {
- switch (operator) {
- case "+":
- return a + b;
- case "-":
- return a - b;
- case "*":
- return a * b;
- case "/":
- if (b == 0) throw new Exception("除以零");
- return a / b;
- case "√":
- return Math.sqrt(b);
- case "x²":
- return Math.pow(a, 2);
- case "1/x":
- if (a == 0) throw new Exception("除以零");
- return 1 / a;
- default:
- return 0;
- }
- }
-}
\ No newline at end of file
diff --git a/src/Main.java b/src/Main.java
deleted file mode 100644
index fe7aa2b..0000000
--- a/src/Main.java
+++ /dev/null
@@ -1,15 +0,0 @@
-//TIP 要运行代码，请按 或
-// 点击装订区域中的 图标。
-public class Main {
- public static void main(String[] args) {
- //TIP 当文本光标位于高亮显示的文本处时按
- // 查看 IntelliJ IDEA 建议如何修正。
- System.out.printf("Hello and welcome!");
-
- for (int i = 1; i <= 5; i++) {
- //TIP 按 开始调试代码。我们已经设置了一个 断点
- // 但您始终可以通过按 添加更多断点。
- System.out.println("i = " + i);
- }
- }
-}
\ No newline at end of file