a=['Jenny','Ellena','Alice','Candy']
b=['David','Hally','Bov','Lsen','Karl']
c=set(a)
c.update(b)
print(c)
b=['David','Hally','Bov','Lsen','Karl']
c=set(a)
c.update(b)
print(c)
2020-12-01
最赞回答 / 蝴蝶蓝兰
<...code...>小伙子，代码这样子写哦，注意换行哦还有，如果一个字符串包含很多需要转义的字符，对每一个字符都进行转义会很麻烦。为了避免这种情况，我们可以在字符串前面加个前缀r，表示这是一个 raw 字符串，里面的字符就不需要转义了。
2020-11-29
L = [75, 92, 59, 68, 99]
sum=sum(L) #求和
number=len(L) #求个数
print(sum/number) #求平价
sum=sum(L) #求和
number=len(L) #求个数
print(sum/number) #求平价
2020-11-29
最新回答 / 逍遥老仙
print('hello', 'a or world')看不出来你到底哪个是字符串,但你肯定出错hello字符串没有加引号a没有赋值,你代码是不是没有打全or放在那里不知道你想要干什么
2020-11-29
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
print(d)
w= d.pop('Alice')
print(d)
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
print(d)
w= d.pop('Alice')
print(d)
2020-11-28
d={
'Alice':45,
'Bob':60,
'Candy':75,
'David':86,
'Ellena':49,
}
wgx=d.get('Alice')
d['Alice']=60
print(d)
print(wgx)
'Alice':45,
'Bob':60,
'Candy':75,
'David':86,
'Ellena':49,
}
wgx=d.get('Alice')
d['Alice']=60
print(d)
print(wgx)
2020-11-28
'Alice':[45],
'Bob':[60],
'Candy':[75],
}
d['Alice']=[45,50,61,66]
d['Bob']=[60,80,61,66]
d['Candy']=[75,88,75,90]
print(d)
'Bob':[60],
'Candy':[75],
}
d['Alice']=[45,50,61,66]
d['Bob']=[60,80,61,66]
d['Candy']=[75,88,75,90]
print(d)
2020-11-28
d = {
'Alice':45,
'Bob':60,
'Candy':75,
'David':86,
'Ellena':49,
}
print(d.get('Alice'))
print(d.get('Bob'))
print(d.get('Candy'))
print(d.get('David'))
print(d.get('Ellena'))
print(d.get('WGX'))
'Alice':45,
'Bob':60,
'Candy':75,
'David':86,
'Ellena':49,
}
print(d.get('Alice'))
print(d.get('Bob'))
print(d.get('Candy'))
print(d.get('David'))
print(d.get('Ellena'))
print(d.get('WGX'))
2020-11-28
已采纳回答 / 慕运维0295976
进入死循环了，True进入判断，0取余2得到0不等于1，所以sum_num=0，num=2，又进入判断，1取余2得到1，continue跳过下面，还判断True，还是1取余2得到1，一直循环，就没有结果
2020-11-27
def my_abs(x):
if not isinstance(x, int) and not isinstance(x, float):
print('param type error.')
return None
if x >= 0:
return x
else:
return -x
print(my_abs(-55))
if not isinstance(x, int) and not isinstance(x, float):
print('param type error.')
return None
if x >= 0:
return x
else:
return -x
print(my_abs(-55))
2020-11-27
def qs(x):
sum=0
num=1
while num<=x:
sum+=num
num+=1
return sum
print(qs(100))
def fact(n):
if n==1:
return 1
return n+fact(n-1)
print(fact(100))
sum=0
num=1
while num<=x:
sum+=num
num+=1
return sum
print(qs(100))
def fact(n):
if n==1:
return 1
return n+fact(n-1)
print(fact(100))
2020-11-27
def sub_sum(L):
sum_ji=0
sum_ou=0
num=1
for x in L:
if num % 2 != 0:
sum_ji+=x
num+=1
else:
sum_ou+=x
num+=1
return sum_ji,sum_ou
print(sub_sum([1,3,2,4,3,5]))
sum_ji=0
sum_ou=0
num=1
for x in L:
if num % 2 != 0:
sum_ji+=x
num+=1
else:
sum_ou+=x
num+=1
return sum_ji,sum_ou
print(sub_sum([1,3,2,4,3,5]))
2020-11-27