SumNum1=sum(range(1,101))
print(SumNum1)
SumNum=0
for i in range(1,101):
SumNum=SumNum+i
i=i+1
print(SumNum)
a=5
print(a)
def fn():
global a
a=1
fn()
print(a)
dict1={
"a":1,"b":2}
print(dict1)
del dict1["a"]
print(dict1)
dict2={
"c":3}
dict1.update(dict2)
print(dict1)
list=[1,2,3,1,2,5]
a=set(list)
print(a)
print([x for x in a])
list=[1,2,3,4,5]
def fn(x):
return x**2
res=map(fn,list)
res=[i for i in res if i>10]
print(res)
import random
a=random.randint(1,10)
print(a)
b=random.random()
print(b)
str=random.sample('abcd',4)
print(str)
import re
str='中国
'
res=re.findall(r'(.*?)
',str)
print(res)
str="ajldjlajfdljfddd"
strnew=set(str)
print(strnew)
strnew1=[i for i in strnew]
print(strnew1)
strnew1.sort(reverse=False)
strnew2="".join(strnew1)
print(strnew2)
sum=lambda a,b:a*b
print(sum(4,6))
dict={
'b':'Tom','a':'Mary','d':'Vivian','c':'Mark'}
print(dict)
list=sorted(dict.items(),key=lambda i:i[0],reverse=False)
print(list)
new_dict={
}
for i in list:
new_dict[i[0]]=i[1]
print(new_dict)
from collections import Counter
str="aaab;bb;c'c'cddddeddedff"
res=Counter(str)
print(res)
import re
str= "not 404 found 张三 99 深圳"
print(str)
list=str.split(" ")
print(list)
res=re.findall('\d+|[a-zA-Z]+',str)
print(res)
for i in res:
if i in list:
list.remove(i)
new_str=" ".join(list)
print(new_str)
a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
def fn(x):
return x%2==1
newa=filter(fn,a)
newa=[i for i in newa]
print(newa)
print(fn(5))
list1=[1,5,7,9]
list2=[2,2,3,6,8]
list1.extend(list2)
print(list1)
list1=set(list1)
print(list1)
list1=list(list1)
list1.sort(reverse=False)
print(list1)
lista=[[1,2],[3,4],[5,6]]
listb= [j for i in lista for j in i]
print(listb)
a,b=3,5
print(a,b)
a,b=b,a
print(a,b)
list=[2,3,5,4,9,6]
new_list=[]
def get_min(list):
a=min(list)
list.remove(a)
new_list.append(a)
if len(list)>0:
get_min(list)
return new_list
new_list=get_min(list)
print(new_list)