摘要： #!/usr/bin/env/python # -*- coding:utf-8 -*- # 1、集合转换 # s = set('hello') # print(s) # 2、集合赋值 # s = set(['hello','nihao','hi']) # print(s) # 3、pop，随机删除一个元素 # s = {'nihao',1,2,3,4,5} # print(s) # s.... 阅读全文

摘要： #!/usr/bin/env/python # -*- coding:utf-8 -*- # 一、列表：list #1、 原值最后追加:append() # li = [11, 22, 33, 44, 55, 66] # li.append(77) # li.append('alex') # li.append([77, 88]) # append()只能添加一项数据 # print(li) ... 阅读全文

摘要： #!/usr/bin/env/python # -*- coding:utf-8 -*- # num = 5 # l = num.bit_length() # print(l) # a = 'alex' # b = a.capitalize() # print(a) # print(b) # nam 阅读全文