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54 lines
1.9 KiB
54 lines
1.9 KiB
import java.util.Scanner;
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/**
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* 温度转换器
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* 功能：支持摄氏度(C)与华氏度(F)之间的相互转换
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*/
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public class TemperatureConverter {
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/**
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* 摄氏度转换为华氏度
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* @param celsius 摄氏温度值
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* @return 华氏温度值
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*/
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public static double celsiusToFahrenheit(double celsius) {
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return celsius * 9.0 / 5.0 + 32.0;
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}
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/**
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* 华氏度转换为摄氏度
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* @param fahrenheit 华氏温度值
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* @return 摄氏温度值
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*/
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public static double fahrenheitToCelsius(double fahrenheit) {
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return (fahrenheit - 32.0) * 5.0 / 9.0;
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}
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public static void main(String[] args) {
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Scanner scanner = new Scanner(System.in);
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System.out.println("===== 温度转换器 =====");
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System.out.print("请输入要转换的温度与单位（例如 36.6 C 或 97 F）：");
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String input = scanner.nextLine().trim();
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if (input.isEmpty()) {
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System.out.println("输入为空，程序退出。");
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scanner.close();
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return;
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}
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String[] parts = input.split(" ");
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try {
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double value = Double.parseDouble(parts[0]);
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String unit = "C";
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if (parts.length >= 2) {
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unit = parts[1].toUpperCase();
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}
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if (unit.startsWith("C")) {
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double f = celsiusToFahrenheit(value);
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System.out.printf("%.1f °C = %.2f °F%n", value, f);
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} else if (unit.startsWith("F")) {
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double c = fahrenheitToCelsius(value);
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System.out.printf("%.1f °F = %.2f °C%n", value, c);
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} else {
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System.out.println("未知单位，请使用 C 或 F。");
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}
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} catch (Exception e) {
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System.out.println("输入解析失败，请按示例输入：36.6 C");
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}
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scanner.close();
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}
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}
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