PYTHON与JAVA执行时间对比

PYTHON与JAVA执行时间对比

• PYTHON
• JAVA
• 结论

PYTHON

import time

start_time = time.time()

n = int(input())
jie = 1
sum = 0
i = 1
while n >= i:
    jie = jie * i
    sum = sum + jie
    i = i + 1
print(sum)

end_time = time.time()
 
print("程序执行时间为：", end_time - start_time, "秒")

执行结果

程序执行时间为： 0.00101470947265625 秒

JAVA

    public static void main(String[] args) {
        double st = System.nanoTime() / 1000000000.0;
        long jie = 1;
        long sum = 0;
        for (int i = 1; i <= 4000; i++) {
            jie = jie * i;
            sum = sum + jie;
        }
        System.out.println(sum);
        double et = System.nanoTime() / 1000000000.0;
        System.out.println("程序执行时间为：" + (et - st) + "秒");
    }

执行结果

程序执行时间为：1.868999097496271E-4秒

结论

JAVA的执行要比PYTHON快。