def func(x):
sum=0
for k in x:
if isinstance(k,int) or isinstance(k,float):
sum=sum+k
return sum
x=[1,24,2.4,'tsf']
print(func(x))
y=(35,24,2.6,'sfjs')
print(func(y))
sum=0
for k in x:
if isinstance(k,int) or isinstance(k,float):
sum=sum+k
return sum
x=[1,24,2.4,'tsf']
print(func(x))
y=(35,24,2.6,'sfjs')
print(func(y))
2021-08-30
def my_abs(x):
if not isinstance(x, int) and not isinstance(x,float):
print('param type error.')
return None
else:
if x >= 0:
return x
else:
return -x
x=2.6
print(my_abs(x))
if not isinstance(x, int) and not isinstance(x,float):
print('param type error.')
return None
else:
if x >= 0:
return x
else:
return -x
x=2.6
print(my_abs(x))
2021-08-30
def s(n):
if n==1:
return 1
return s(n-1)+n
k=s(100)
print(k)#遞推函數(shù)
sum=0
i=1
while i<=100:
sum=sum+i
i=i+1
print(sum)#循環(huán)
if n==1:
return 1
return s(n-1)+n
k=s(100)
print(k)#遞推函數(shù)
sum=0
i=1
while i<=100:
sum=sum+i
i=i+1
print(sum)#循環(huán)
2021-08-29
def b_sum(num):
i=1
g=0
while i<len(num):
g=g+num[i]
i=i+2
k=0
y=0
while k<len(num)-1:
y=y+num[k]
k=k+2
return g,y
num=[1,2,33,22,33,11,64,92]
result=b_sum(num)
print('所有奇數(shù)項(xiàng)的和{}'.format(result[1]))
print('所有偶數(shù)項(xiàng)的和{}'.format(result[0]))
i=1
g=0
while i<len(num):
g=g+num[i]
i=i+2
k=0
y=0
while k<len(num)-1:
y=y+num[k]
k=k+2
return g,y
num=[1,2,33,22,33,11,64,92]
result=b_sum(num)
print('所有奇數(shù)項(xiàng)的和{}'.format(result[1]))
print('所有偶數(shù)項(xiàng)的和{}'.format(result[0]))
2021-08-29
def square_of_sum(L):
w=0
for k in L:
y=k*k
w=w+y
return w
L = [1, 2, 3, 4, 5]
result =square_of_sum(L)
print(result)
w=0
for k in L:
y=k*k
w=w+y
return w
L = [1, 2, 3, 4, 5]
result =square_of_sum(L)
print(result)
2021-08-29
s1 = set([1, 2, 3, 4, 5])
s2 = set([1, 2, 3, 4, 5, 6, 7, 8, 9])
print(s1.isdisjoint(s2))
sum=0
for k in s1:
for w in s2:
sum=sum+1
if k==w:
print
else:
print('none')
print(sum)
s2 = set([1, 2, 3, 4, 5, 6, 7, 8, 9])
print(s1.isdisjoint(s2))
sum=0
for k in s1:
for w in s2:
sum=sum+1
if k==w:
else:
print('none')
print(sum)
2021-08-29
s1 = set([1, 2, 3, 4, 5])
s2 = set([1, 2, 3, 4, 5, 6, 7, 8, 9])
print(s1.isdisjoint(s2))
sum=0
for k in s1:
for w in s2:
sum=sum+1
if k==w:
print
else:
print('none')
print(sum)
s2 = set([1, 2, 3, 4, 5, 6, 7, 8, 9])
print(s1.isdisjoint(s2))
sum=0
for k in s1:
for w in s2:
sum=sum+1
if k==w:
else:
print('none')
print(sum)
2021-08-29
# Enter a code
L = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
S = set([1, 3, 5, 7, 9, 11])
for k in L:
if k in S:
S.remove(k)
else:
S.add(k)
print(S)
L = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
S = set([1, 3, 5, 7, 9, 11])
for k in L:
if k in S:
S.remove(k)
else:
S.add(k)
print(S)
2021-08-29
name=['alice','bob','candy','david','ellena']
s=set(name)
print(s)
s=set(name)
print(s)
2021-08-29
# Enter a code
d = {'Alice': [50, 61, 66], 'Bob': [80, 61, 66], 'Candy': [88, 75, 90]}
for key in d:
value=d[key]
print(key,value)
d = {'Alice': [50, 61, 66], 'Bob': [80, 61, 66], 'Candy': [88, 75, 90]}
for key in d:
value=d[key]
print(key,value)
2021-08-29
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
k='Alice'
if k in d.keys():
d.pop(k)
else:
print('{} not in d'.format(k))
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
k='Alice'
if k in d.keys():
d.pop(k)
else:
print('{} not in d'.format(k))
2021-08-29
# Enter a code
names=['Alice', 'Bob', 'Candy', 'David', 'Ellena']
L=['Zero', 'Phoebe', 'Gen','Jone']
for s in L:
i=0
for m in names:
print m
if m<s:
i+=1
names.insert(i,s)
print names
好像這個得到想象中的結(jié)果=。=自我得瑟一下
names=['Alice', 'Bob', 'Candy', 'David', 'Ellena']
L=['Zero', 'Phoebe', 'Gen','Jone']
for s in L:
i=0
for m in names:
print m
if m<s:
i+=1
names.insert(i,s)
print names
好像這個得到想象中的結(jié)果=。=自我得瑟一下
2021-08-29
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
name=('Alice','Bob', 'Candy', 'Mimi','David')
for i in name:
print(i,(d.get(i)))
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
name=('Alice','Bob', 'Candy', 'Mimi','David')
for i in name:
print(i,(d.get(i)))
2021-08-28
# Enter a code
score=(100, 69, 29, 100, 72, 99, 98, 100, 75, 100, 100, 42, 88, 100)
print(score.count(100))
score=(100, 69, 29, 100, 72, 99, 98, 100, 75, 100, 100, 42, 88, 100)
print(score.count(100))
2021-08-28