1. The document reads as follows, titled: name, sex, age, salary
egon male 18 3000
alex male 38 30000
wupeiqi female 28 20000
yuanhao female 28 10000
Requirements:
Remove each record from a file into a list, each element of the list {'name':'egon','sex':'male','age':18,'salary':3000}
form
- The list 1 obtained, the highest-paid extracted person's information
- According to a list obtained by removing most of the young people's information
- According to Table 1, it will get everyone's information in the name mapped to uppercase first letter
- According to a list obtained by filtering out people whose names begin with a message
- Print recursive Fibonacci number (numbers and the first two to give a third number, such as: 0112347 ...)
- A list of many layers of nested, such as l = [1,2, [3, [4,5,6, [7,8, [9,10, [11,12,13, [14,15]]] ]]]], remove all the values recursively
#从文件中取出每一条记录放入列表中,列表的每个元素都是`{'name':'egon','sex':'male','age':18,'salary':3000}`的形式
with open(r'info.txt','r',encoding='utf-8') as fr:
values_info = fr.read().split("\n")
keys = ["name", "sex", "age", "salary"]
values_list = []
for i in range(len(values_info)):
res = zip(keys, values_info[i].split())
values_list.append({k: v for k, v in res})
print(values_list)
# 1.根据1得到的列表,取出薪资最高的人的信息
print(max(values_list, key=lambda salary:salary["salary"]))
# 2.根据1得到的列表,取出最年轻的人的信息
print(max(values_list, key=lambda age:age["age"]))
# 3.根据1得到的列表,将每个人的信息中的名字映射成首字母大写的形式
def func(item):
item['name'] = item['name'].capitalize()
return item
res = list(map(func,values_list))
print(res)
# 4.根据1得到的列表,过滤掉名字以a开头的人的信息
def f2(item):
if item['name'].startswith('a'):
return False
else:
return True
res = filter(f2,values_list)
print(list(res))
# 5.使用递归打印斐波那契数列(前两个数的和得到第三个数,如:0 1 1 2 3 4 7...)
x = 0
y = 1
lis1 = []
def f5():
global x,y
lis1.append(x)
x,y = y,x+y
if len(lis1)==10:
return
f5()
f5()
print(lis1)