前言
最近很多學了基礎的小伙伴問我該怎麼提升編程水平？學了基礎該上哪刷題？明明學了很多,做項目卻不知道怎麼上手,其實這就是練得太少,只注重了學,卻忽視了刷題,只有不斷練習才能提高和鞏固編程思維和能力！
剛好看到牛客網最近出了Python的新題庫於是體驗了一番感覺還不錯
鏈接地址：牛客網 | Python從入門到實踐四十招,廢話少說速度上號,或者跟著下文一起刷題！！！
描述：
創建一個依次包含鍵-值對{‘name’: ‘Niuniu’和’Student ID’: 1}的字典my_dict_1,
創建一個依次包含鍵-值對{‘name’: ‘Niumei’和’Student ID’: 2}的字典my_dict_2,
創建一個依次包含鍵-值對{‘name’: ‘Niu Ke Le’和’Student ID’: 3}的字典my_dict_3,
創建一個空列表dict_list,使用append()方法依次將字典my_dict_1、my_dict_2和my_dict_3添加到dict_list裡,
使用for循環遍歷dict_list,對於遍歷到的字典,使用print()語句一行輸出類似字符串"Niuniu’s student id is 1."的語句以打印對應字典中的內容.
輸入描述：無
輸出描述：按題目描述進行輸出即可.
Niuniu’s student id is 1.
Niumei’s student id is 2.
Niu Ke Le’s student id is 3.
實現代碼：
my_dict_1 = {
'name': 'Niuniu', 'Student ID': 1}
my_dict_2 = {
'name': 'Niumei', 'Student ID': 2}
my_dict_3 = {
'name': 'Niu Ke Le', 'Student ID': 3}
dict_list = []
dict_list.append(my_dict_1)
dict_list.append(my_dict_2)
dict_list.append(my_dict_3)
for i in dict_list:
# 字典獲取元素的方法i['key值'],或者i.get('key值')
print(f"{i['name']}'s student id is {i.get('Student ID')}.")
運行結果：
Niuniu's student id is 1.
Niumei's student id is 2.
Niu Ke Le's student id is 3.
描述： 創建一個依次包含鍵-值對’Beijing’: {Capital: ‘China’}、‘Moscow’: {Capital: ‘Russia’}和’Paris’: {Capital: ‘France’}的字典cities_dict,
請使用for循環遍歷"已使用sorted()函數按升序進行臨時排序的包含字典cities_dict的所有鍵的列表",
對於每一個遍歷到的城市名,使用print()語句一行輸出類似字符串’Beijing is the capital of China!'的語句.
輸入描述：無
輸出描述：按題目描述進行輸出即可.
Beijing is the capital of China!
Moscow is the capital of Russia!
Paris is the capital of France!
實現代碼：
cities_dict={
'Beijing': {
"Capital": 'China'},
'Moscow': {
"Capital": 'Russia'},
'Paris': {
"Capital": 'France'}
}
for i in sorted(cities_dict.keys()):
print(f"{i} is the capital of {cities_dict[i]['Capital']}!")
運行結果：
Beijing is the capital of China!
Moscow is the capital of Russia!
Paris is the capital of France!
描述：
駝瑞馳調查了班上部分同學喜歡哪些顏色,並創建了一個依次包含鍵-值對’Allen’: [‘red’, ‘blue’, ‘yellow’]、‘Tom’: [‘green’, ‘white’, ‘blue’]和’Andy’: [‘black’, ‘pink’]的字典result_dict,作為已記錄的調查結果.
現在駝瑞馳想查看字典result_dict的內容,你能幫幫他嗎？
使用for循環遍歷"使用sorted()函數按升序進行臨時排序的包含字典result_dict的所有鍵的列表",對於每一個遍歷到的名字,先使用print()語句一行輸出類似字符串"Allen’s favorite colors are:"的語句,然後再使用for循環遍歷該名字在字典result_dict中對應的列表,依次輸出該列表中的顏色.
輸入描述：無
輸出描述：按題目描述進行輸出即可.
Allen’s favorite colors are:
red
blue
yellow
Andy’s favorite colors are:
black
pink
Tom’s favorite colors are:
green
white
blue
實現代碼：
result_dict = {
'Allen': ['red', 'blue', 'yellow'],
'Tom': ['green', 'white', 'blue'],
'Andy': ['black', 'pink']
}
for i in sorted(k for k in result_dict):##List comprehension generationkey的列表
print("%s's favorite colors are:" % i)
for x in result_dict[i]:
print(x)
運行結果：
Allen's favorite colors are:
red
blue
yellow
Andy's favorite colors are:
black
pink
Tom's favorite colors are:
green
white
blue
描述：
Niuniu has two lists,A record of the names of Niuke.com users,Another record of the language they use.Suppose the two lists are in one-to-one correspondence,請使用zipThe function wraps the two lists as dictionaries,by namekey,語言為value,Then output the dictionary directly.
輸入描述：
On the first line, enter multiple strings representing the user name,以空格間隔.
The second line enters multiple strings indicating the language used,以空格間隔.
輸出描述：Directly output a dictionary of two lists.
代碼實現：
a =input()
b = input()
names = a.split()
language = b.split()
dict_a = dict(zip(names,language))
print(dict_a)
運行結果：
Niuniu NIumei Niukele
C C++ Python
{
'Niuniu': 'C', 'NIumei': 'C++', 'Niukele': 'Python'}
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鏈接地址：牛客網 | Python從入門到實踐四十招,廢話少說速度上號！！！
