n = int(input("请输入要求的数字:"))
#区分2做为第一个质素
if n == 2:
list1 = [2]
if n > 2:
list1 = []
for i in range(2, n):
for j in range(2, i):
if i % j == 0:
break
else:
list1.append(i)
print(list1)复制代码