# 字符串sen = 'this'print(type(sen))print(sen)# 数组list1 = ['this', 'is', 'a', 'python', 'project']for i in list1:    print(i)print(len(list1))print(type(list1))# 元组tu = tuple(list1)print(tu)print(type(tu))for u in tu:    print(u)print(tu[2])# 字典di = {
   'kkk': 116, 'hhh': 117, 'ggg': 118}print(di['hhh'])# print(di)for key in di:    print((str(key) + ':' + str(di[key])))# 集合s = set([3, 4, 5, 6, 6, 3, 6])#重复元素会被自动过滤print(s)s.add("a")print(s)for ss in s:    print(ss)