摘要：
#-*-coding:utf-8-*- ''' 统计用户输入的字符串中有几个数字 ''' # numList = ['0','1','2','3','4','5','6','7','8','9'] s = input('请输入字符串:') count = 0 for i in s: if i in numList: count +=1 print(count) 阅读全文
摘要：
#-*-coding:utf-8-*- ''' ''' # 返回二进制的位数 i = 1 a = 2 b = 3 print(i.bit_length()) print(a.bit_length()) print(b.bit_length()) 阅读全文