测试Python编译器性能

import time
t=time.time()
num=input("输入一个质数：")
def prime_number(num):
    i=2
    for i in range(int(num)):
        i=i*2
    num=i-1
    print(num)
    #input()print(time.time()-t)
    prime_number(num)
prime_number(num)

pypy明显比cpython快得多