Python中的元组介绍

t = (1,2.3,True,'star')   ##例如这里面有数字，波尔值，和字符
print(t)
print(type(t))

t1 = ([1,2,3],4)    ##里面含有一个数组，可以改变里面数组的值
t1[0].append(4)
print(t1)

t2 = ('hello',)  
t3 = (1,)
print(type(t2))
print(type(t3))

allowUsers = ('root','westos','redhat')
allowPasswd = ('123','456','789')

print(allowUsers[0])
print(allowUsers[-1])
print(allowUsers[1:])
print(allowUsers[2:])
print(allowUsers[:-1])
print(allowUsers[::-1])

print(allowUsers * 3)

print(allowUsers + ('linux','python'))

print('westos' in allowUsers)
print('westos' not in allowUsers)

for user in allowUsers:
  print(user)

for index,user in enumerate(allowUsers):
  print('第%d个白名单用户: %s' %(index+1,user))

t = (1,2.3,True,'westos','westos')
print(t.count('westos'))
print(t.index(2.3))

#1.先把(a,b)封装成一个元组(1,2)
#2.b,a=a,b ---> b,a=(1,2)
b = (1,2)[0]
a = (1,2)[1]
print(a)
print(b)

name = 'westos'
age = 11
t = (name,age)
print('name:%s , age:%d' %(name,age))
print('name:%s , age:%d' %t)

t = ('westos',11,100)
name,age,score = t
print(name,age,score)

score = (100,89,45,78,65)
# scoreLi = list(score)
# scoreLi.sort()
# print(scoreLi)
scores = sorted(score)
# print(scores)
minscore,*middlescore,maxscore = scores
print(minscore)
print(middlescore)
print(maxscore)
print('最终成绩为: %.2f' %(sum(middlescore) / len(middlescore)))