代码如下：
#!/usr/bin/python3
# -*- coding:utf-8 -*-
# @FileName :20200930_01.py
# @Time :2020/9/30 13:24
# @Author :Storm_duke
"""
"""
# import
# def
if __name__ == "__main__":
alist = []
flag = True
count = 0
while flag:
num = input("请输入一个整数：")
try:
n = int(num)
alist.append(n)
count += 1
if count == 4:
flag = False
else:
continue
except ValueError:
print("请确认输入的是整数")
print(sorted(alist, reverse= False))
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