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  • ,字符串,列表,元组,字典

    # a = "asdjh hh"
    # res = "jhh" in a
    # print(res)#粒度
    # temp = "alsd"
    # print(temp.upper())
    # print(dir(temp))
    # help(type(temp))
    # n1 = 123
    # n2 = 456
    # print(n1+n2)
    # print(n1.__add__(n2))
    # n1 = 4
    # print(n1.bit_length())
    #
    # a1 = "asddfdd"
    # print(a1.capitalize())#首字母变大写
    # print(a1.center(10,'#'))#居中两边加符号
    # print(a1.count('dd',5,6))#子序列的个数
    # print(a1.endswith('d',4,5))#是否已什么结尾
    # a2 = " heello "
    # print(a2)
    # print(a2.expandtabs(10))#tab换空格
    # print(a1.find('tsdd'))#寻找,找不到返回-1
    # print(a1.index("assdd"))#寻找找不到报错
    # a3 = "nnn{0}dgf{1}dfg{2}".format('1','2','3')#占位符
    # print(a3)
    # a1 = 'Asd99'
    # print(a1.isalnum())
    # print(a1.isalpha())
    # print(a1.isdigit())
    # print(a1.islower())
    # print(a1.isspace())
    # print(a1.istitle())
    # print(a1.isupper())
    # li = ['123','asd','ssasd']
    # lis = 'asd'
    # liss = ('123','asdf','tjyh45')
    # a = '_'.join(liss)#可迭代的
    # print(a)
    # a1 = ' as dg'
    # b = a1.ljust(50,'s')
    # print(b)
    # c = a1.lstrip()#移除左空格
    # print(c)
    # c = a1.rsplit()
    # c = a1.split()
    # s = a1.partition('a')
    # print(s)
    # ss = a1.replace('as','asdasd')
    # print(ss)
    # a= 'asdlkj'
    # b = ','.join(a)
    # print(type(b))
    # print(b[0])
    # for i in a :
    # continue
    # break
    # name_list = ['curry','tom','jerry']
    # a = name_list.count('tom')#元素出现的次数
    # b = name_list.index('curry')#获取索引
    # c = name_list.append('jimmy')#追加
    # d = name_list.extend(['jimmys'])#批量追加
    # e = name_list.insert(1,'2')#在索引出替换
    # f = name_list.remove('2')#移除元素
    # print(name_list)
    # g = name_list.pop(2)#移除索引元素并赋值
    # print(name_list)
    # print(g)
    # name_list.reverse()#翻转
    # print(name_list)
    # name_list.sort()#排序
    # print(name_list)
    # del name_list[0]#删除指定索引内容
    # print(name_list)
    #列表可以修改元组不可以修改
    # name_tuple = ('curry','tom','jerry')
    # print(name_tuple[0:1])
    # print(name_tuple.count('curry'))
    # print(name_tuple.index('curry'))
    # user_info = {
    # "name":'curyy',
    # "age":52,
    # "gender":"m",
    # }
    # #索引
    # print(user_info["name"])
    # print(user_info.keys())
    # print(user_info.values())
    # print(user_info.items())
    # for k,v in user_info.items():
    # print(k,v)
    # print(user_info.get('genders'))#索引取值不存在则报错,get不存在返回None
    # user_info.clear()
    # print(user_info)
    # a = 'get' in user_info.keys()
    # print(a)
    # b = user_info.copy()
    # print(b)
    # li = ['java','python','php','c']
    # for k,v in enumerate(li):
    # print(k,v)
    # inp = int(input('输入:'))
    # print(li[inp])
    # print(range(1,10))#2.7里用xrange(省内存),3.6都一样
    # for i in range(10,1,-2):
    # print(i)
    # li = ['asd','asds']
    # print(int('123',10))
    # n1 = 1234
    # b1 = 1234
    #
    # print(id(n1))
    # print(id(b1))
    # e = str()
    # print(e)
    # a = "小明"
    # b = bytes(a,encoding="utf-8")
    # print(b)
    # c = str(b,encoding='utf-8')
    # print(c)
    # li = [12,46]
    # li.extend(('asdasd',56413))
    # print(li)
    # li.reverse()
    # print(li)
    # li.insert(0,744)
    # print(li)
    # print(li[0],li[0:3])

    # a = tuple({'jkl':456})
    # print(a)
    # a = (123,4524,['asdf'])
    #
    # a[2].append('asd')
    # print(a)
    #t = (11,22,["alex",{"k1":"v1"}] )
    # t[2][1].update({"k2":123})
    # print(t)
    # t[2][1]["k2"] = 123
    # print(t)
    # a = "小明"
    # b = bytes(a,encoding="gbk")
    # c = str(b,encoding="gbk")
    # print(b,c)
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  • 原文地址:https://www.cnblogs.com/currynashinians000/p/8588322.html
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