<每日一题>题目9：求质数V1.0

num= input("请输入您要求质数的范围（以逗号结尾）：")
down,up = num.split(',',1)
down,up = int(down),int(up)
if down < 2:
    print("输入有误，请重新输入！")
    num = input("请输入您要求质数的范围（以逗号结尾）：")
    down, up = num.split(',', 1)
    down, up = int(down), int(up)
a = []
for i in range(down,up):
    if i == 2:
        a.append(i)
    else:
        for j in range(2,i):
            if i % j == 0:
                break
            else:
                a.append(i)
                break
print(a)

　　运行结果：