摘要：
list_1 = [1,4,5,7,3,6,7,9]list_1 = set(list_1)list_2 =set([2,6,0,66,22,8,4])print(list_1,list_2)'''#交集print( list_1.intersection(list_2) )#并集print(lis 阅读全文
摘要：
name = "my \tname is {name} and i am {year} old" print(name.capitalize())name的首字母大写print(name.count("a")) name中a的数量print(name.center(50,"-"))总共打印50个字符 阅读全文