1 #第一大题 2 # li = [‘alex‘,‘Wusir‘,‘ritian‘,‘barry‘,‘武沛齐‘] 3 #print(len(li)) 4 # li.append(‘seven‘) 5 # print(li) 6 # li.insert(1,‘Tony‘) 7 # print(li) 8 # li[2] = ‘Kelly‘ 9 # print(li) 10 # li[3] = ‘妖怪‘ 11 # print(li) 12 # data = [1,‘a‘,3,4,‘heart‘] 13 # for item in data: 14 # li.append(item) 15 # print(li) 16 # s = ‘qwert‘ 17 # for item in s: 18 # li.append(item) 19 # print(li) 20 # li.remove(‘barry‘) 21 # print(li) 22 # li.remove(li[2]) 23 # print(li) 24 # del li[1:5] 25 # print(li) 26 27 #第二大题 28 # li = [1,3,2,‘a‘,4,‘b‘,5,‘c‘] 29 # data = li[0:3] 30 # print(data) 31 # data = li[3:6] 32 # print(data) 33 # data = li[0::2] 34 # print(data) 35 # data = li[1::2] 36 # data2 = li[1:6:2] 37 # print(data) 38 # print(data2) 39 # data = li[-1:] 40 # print(data) 41 # data = li[5:0:-2] 42 # print(data) 43 44 #第三大题 45 # lis = [2,3,‘k‘,[‘qwe‘,20,[‘k1‘,[‘tt‘,3,‘1‘]],89],‘ab‘,‘adv‘] 46 # print(lis[2].upper()) 47 # lis[1] = 100 48 # print(lis) 49 # lis[3][2][1][0] = 101 50 # print(lis) 51 # lis[3].insert(0,‘火车头‘) 52 # print(lis) 53 54 #第四题 55 ‘‘‘ 56 user = [‘武沛齐‘,‘景女神‘,‘肖大侠‘] 57 for item in user: 58 data = user.index(item) 59 a = str(data) + item 60 print(a) 61 for index in range(len(user)): 62 print(index,user[index]) 63 ‘‘‘ 64 #第五题 65 ‘‘‘ 66 user = [‘武沛齐‘,‘景女神‘,‘肖大侠‘] 67 count = 1 68 for item in user: 69 print(count,item) 70 count += 1 71 ‘‘‘ 72 73 #第六题 74 ‘‘‘ 75 goods = [‘汽车‘,‘飞机‘,‘火箭‘] 76 print(goods) 77 choice_goods = input(‘请选择你想要的商品:‘) 78 if choice_goods == ‘0‘: 79 print(goods[0]) 80 elif choice_goods == ‘1‘: 81 print(goods[1]) 82 elif choice_goods == ‘2‘: 83 print(goods[2]) 84 else: 85 print(‘你的输入有误,没有该商品‘) 86 ‘‘‘ 87 ‘‘‘ 88 goods = [‘汽车‘,‘飞机‘,‘火箭‘] 89 for index in range(len(goods)): 90 print(index,goods[index]) 91 index = int(input(‘请选择你想要的商品:‘)) 92 text = goods[index] 93 messge = ‘你选择的商品是{}‘.format(text) 94 print(messge) 95 ‘‘‘ 96 97 #第七题 98 ‘‘‘ 99 l = [] 100 for i in range(0,51): 101 if i%3==0: 102 l.append(i) 103 print(l) 104 ‘‘‘ 105 #第八题 106 ‘‘‘ 107 l = [] 108 for i in range(0,51): 109 if i % 3 == 0: 110 l.insert(0,i) 111 print(l) 112 ‘‘‘ 113 ‘‘‘ 114 data_list = [] 115 li = [‘alexC‘,‘AbC‘,‘egon‘,‘riTiAn‘,‘WuSir‘,‘ agc‘] 116 for item in li: 117 item = item.strip() 118 if item.startswith(‘a‘): 119 data_list.append(item) 120 print(data_list) 121 ‘‘‘ 122 123 #第十题 124 data = [‘京1231‘,‘冀8899‘,‘京166631‘,‘晋989‘] 125 data1 = [] 126 for item in data: 127 if item.startswith(‘京‘): 128 data1.append(item) 129 print(data1) 130 print(‘京牌车辆的数量为{}‘.format(len(data1)))
原文:https://www.cnblogs.com/cqh78941526/p/14702593.html