python怎么學，python應用舉例_python基礎舉例應用

將下述兩個變量的值交換

s1='alex'

s2='SB'

s1,s2=s2,s1

print(s1,s2)

python怎么學？判斷下述結果

msg1='alex say my name is alex,my age is 73,my sex is female'

msg2='alex say my name is alex,my age is 73,my sex is female'

print(msg1 is msg2)

print(msg1 == msg2)

有存放用戶信息的列表如下，分別存放用戶的名字、年齡、公司信息userinfo={

python和java？'name':'egon',

'age':18,

'company_info':{

'cname':'oldboy',

'addr':{

'country':'China',

python有什么用。'city':'Shanghai',

}

}

要求取出該用戶公司所在的城市

userinfo={

'name':'egon',

python3、'age':18,

'company_info':{

'cname':'oldboy',

'addr':{

'country':'China',

'city':'Shanghai',

python應用案例。}

}

}

print(userinfo['company_info']['addr']['city'])

students=[

{'name':'alex','age':38,'hobbies':['play','sleep']},

python編程例子，{'name':'egon','age':18,'hobbies':['read','sleep']},

{'name':'wupeiqi','age':58,'hobbies':['music','read','sleep']},

]

取第二個學生的第二個愛好

要求取出三名學生的詳細信息分別賦值給三個變量(用一行代碼實現)

students=[

python簡單應用。{'name':'alex','age':38,'hobbies':['play','sleep']},

{'name':'egon','age':18,'hobbies':['read','sleep']},

{'name':'wupeiqi','age':58,'hobbies':['music','read','sleep']},

]

print(students[1]['hobbies'][1])

a,b,c=students

python小例子？print(a,b,c)