n = int(input("請輸入要求的數字:"))
#區分2做爲第一個質素
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)複製代碼