习题二 答案
查找列表中元素，移除每个元素的空格，并查找以 a或A开头 并且以 c 结尾的所有元素。
1 li = ["alec", " aric", "Alex", "Tony", "rain"]
2 tu = ("alec", " aric", "Alex", "Tony", "rain")
3 dic = {'k1': "alex", 'k2': ' aric', "k3": "Alex", "k4": "Tony"}
1 li = ["alec", " aric", "Alex", "Tony", "rain"]
2 tu = ("alec", " aric", "Alex", "Tony", "rain")
3 dic = {'k1': "alex", 'k2': ' Aric', "k3": "Alex", "k4": "Tony"}
4
5 for a in range(len(li)):
6 li[a] = li[a].replace(" ", "")
7 print(li)
8
9 tu = list(tu)
10 for b in range(len(tu)):
11 tu[b] = tu[b].replace(" ", "")
12 tu = tuple(tu)
13 print(tu)
14
15 for c in dic:
16 dic[c] = dic[c].replace(" ", "")
17 print(dic)
18
19 for a1 in li:
20 if (a1.startswith("a") or a1.startswith("A")) and a1.endswith("c"):
21 print(a1)
22
23 for b1 in tu:
24 if (b1.startswith("a") or b1.startswith("A")) and b1.endswith("c"):
25 print(b1)
26
27 for c1 in dic:
28 c2 = dic[c1].strip()
29 if (c2.startswith("a") or c2.startswith("A")) and c2.endswith("c"):
30 print(c2)
输出结果：
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['alec', 'aric', 'Alex', 'Tony', 'rain']
('alec', 'aric', 'Alex', 'Tony', 'rain')
{'k3': 'Alex', 'k1': 'alex', 'k2': 'Aric', 'k4': 'Tony'}
alec
aric
alec
aric
Aric
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