[Python知识库]python-赫-day18

# 可变参数
def func(name, *args, **kwargs):
    print(name)
    print(args)
    print(kwargs)
func("eric", 1, 2, "haha", gender="男", addr='xixi')

def f(a,b,c):
    pass
f(*(1,2, 3))

内置函数

from random import randint
ls = [randint(10, 100) for _ in range(10)]
# .sort list的方法  对list原地操作
# ls.sort()
# print(ls)
# sorted()  内置函数  返回新的排序对象  参数可以是迭代对象
print(sorted(ls, reverse=True))
print(ls)

复杂类型排序

stu_ls = [
    {'name': '张三', 'age': 76, 'height': 1.89},
    {'name': 'lisi', 'age': 23, 'height': 2.09},
    {'name': 'wagwu', 'age': 44, 'height': 1.39},
    {'name': 'zhaol', 'age': 34, 'height': 1.49},
    {'name': '天气', 'age': 23, 'height': 1.79},
]
def sorted_by_age(d):
    # return d['age']
    return d['height']

print(sorted(stu_ls, key=sorted_by_age, reverse=True))
print(sorted(stu_ls, key=lambda x:x['age'], reverse=True))
stu_ls.sort(key=lambda x:x['age'], reverse=True)
print(stu_ls)
import string
from random import randint
data = {k:randint(10, 100) for k in string.ascii_uppercase[:10]}
print(data)
# 转换成列表
data = list(data.items())
print(data)
# 排序
# data.sort(key=lambda x:x[1], reverse=True)
# print(data)
print(sorted(data, key=lambda x: x[1], reverse=True))

print(all([11, 222,333]))
print(all([0, 222,333]))
print(all([True, True,True]))
print(all([True, True,False]))

print(any([11, 222,333]))
print(any([0, 222,333]))
print(any([0, 0,0]))
print(any([True, True,True]))
print(any([True, True,False]))
print(any([False, False,False]))
print(any("dada"))
print(any("0"))
print(any(""))

num = int(input())
print(sum([int(i) for i in str(num*2)]))