# Enter a code
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
d["Gaven"] = 86
print d
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
d["Gaven"] = 86
print d
2021-03-31
# Enter a code
T = (1, 'CH', [3, 4])
T1 = list(T)
T1[2] = tuple(T1[2])
T2 = tuple(T1)
print T1, T2
T = (1, 'CH', [3, 4])
T1 = list(T)
T1[2] = tuple(T1[2])
T2 = tuple(T1)
print T1, T2
2021-03-31
# Enter a code
T = ((1+2), ((1+2),), ('a'+'b'), (1, ), (1,2,3,4,5))
num = 0
for i in T:
print(type(i))
if type(i) == tuple:
num = num + 1
print(num)
T = ((1+2), ((1+2),), ('a'+'b'), (1, ), (1,2,3,4,5))
num = 0
for i in T:
print(type(i))
if type(i) == tuple:
num = num + 1
print(num)
2021-03-31
a=int(input('请输入年龄'))
if a>=18:
print("aduit")
elif 6 <= a < 18:
print("t")
elif 0<a<3:
print('baby')
else:
print('k')
if a>=18:
print("aduit")
elif 6 <= a < 18:
print("t")
elif 0<a<3:
print('baby')
else:
print('k')
2021-03-30
# Enter a code
L = [[1, 2, 3], [5, 3, 2], [7, 3, 2]]
for [x,y,z] in L:
print(x,y,z,2*(x*y+x*z+y*z))
L = [[1, 2, 3], [5, 3, 2], [7, 3, 2]]
for [x,y,z] in L:
print(x,y,z,2*(x*y+x*z+y*z))
2021-03-30
def average(*args):
if len(args) == 0:
return 0
sum = 0
for item in args:
sum += item
avg = sum/len(args)
return avg
print(average(0))
print(average())
print(average(12,6))
if len(args) == 0:
return 0
sum = 0
for item in args:
sum += item
avg = sum/len(args)
return avg
print(average(0))
print(average())
print(average(12,6))
2021-03-28
def greet(n='world'):
if n == 'world':
print('Hello,world.')
else :
print('Hello,{}'.format(n))
greet('Hello')
greet()
if n == 'world':
print('Hello,world.')
else :
print('Hello,{}'.format(n))
greet('Hello')
greet()
2021-03-28
def xunhuan_sum(x,y):
sum = 0
num = x
while x <= y:
sum += x
x += 1
return sum
print(xunhuan_sum(1,100)）
def digui_sum(x,y):
sum = 0
if y == 1:
sum = y
else:
sum = xunhuan_sum(x,y-1) + y
print((sum))
return sum
digui_sum(1,100)
sum = 0
num = x
while x <= y:
sum += x
x += 1
return sum
print(xunhuan_sum(1,100)）
def digui_sum(x,y):
sum = 0
if y == 1:
sum = y
else:
sum = xunhuan_sum(x,y-1) + y
print((sum))
return sum
digui_sum(1,100)
2021-03-28
取偶数位置的元素，按照答案来说给出的是奇数位子的元素，不知道作者自己有没有发现。列表按索引从0,1,2,3,4,5
2021-03-28