6 函数复习

 1 def sushu(lower,upper):
 2     lei = []
 3     for num in range(lower,upper+1):
 4         if num > 1:
 5             for i in range(2,num):
 6                 if (num % i ) == 0:
 7                     break
 8             else:
 9                 lei.append(num)
10     print(‘求的素数共计‘+ str(len(lei)) +‘个。\n‘,‘分别是:‘,lei)
11 while 1:
12     lower = int(input(‘输入区间最小值:‘))
13     upper = int(input(‘输入区间最大值:‘))
14     sushu(lower, upper)
15     print()