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import java.util.Scanner;
// 温度转换器:摄氏(C)与华氏(F)互转,复刻Python原程序逻辑
public class TemperatureConverter {
// 摄氏转华氏
public static double c2f(double c) {
return c * 9.0 / 5.0 + 32.0;
}
// 华氏转摄氏
public static double f2c(double f) {
return (f - 32.0) * 5.0 / 9.0;
}
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
// 输入提示与Python完全一致
System.out.print("请输入要转换的温度与单位(例如 36.6 C 或 97 F):");
String input = sc.nextLine().strip();
sc.close();
// 空输入处理
if (input.isEmpty()) {
System.out.println("输入为空,程序退出。");
return;
}
// 解析输入并转换
String[] parts = input.split(" ");
try {
double val = Double.parseDouble(parts[0]);
String unit = parts.length > 1 ? parts[1].toUpperCase() : "C";
if (unit.startsWith("C")) {
System.out.printf("%.2f °C = %.2f °F\n", val, c2f(val));
} else if (unit.startsWith("F")) {
System.out.printf("%.2f °F = %.2f °C\n", val, f2c(val));
} else {
System.out.println("未知单位,请使用 C 或 F。");
}
} catch (Exception e) {
System.out.println("输入解析失败,请按示例输入数值与单位,例如:36.6 C");
}
}
}