自己写毫无思路啊，不知道怎么想到的num=1 sum=2，sum=sum*num，num=num+1.脑袋里一点概念和意识都没有啊，怎么想出来的这个逻辑
2021-02-26
a=2
b=0
while True:
if b>=1000:
break
a+=b
b+=2
print(a)
输出结果是249502 这样是对的不
b=0
while True:
if b>=1000:
break
a+=b
b+=2
print(a)
输出结果是249502 这样是对的不
2021-02-25
结合前面的知识
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
c=('Alice', 'Bob', 'Candy', 'Mimi', 'David')
template = r'I`M {0},I GET {1}.'
for A in c:
b=template.format(A,d.get(A))
print(b)
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
c=('Alice', 'Bob', 'Candy', 'Mimi', 'David')
template = r'I`M {0},I GET {1}.'
for A in c:
b=template.format(A,d.get(A))
print(b)
2021-02-25
最赞回答 / 慕无忌6223069
>>> L=[75, 92, 59, 68, 99]>>> sum=0.0>>> for x in L:... sum=sum+x...>>> print(sum/5)78.6要这样子。多换一行
2021-02-25
>>> L = [75, 92, 59, 68, 99]
>>> sum = 0.0
>>> for x in L:
... sum = sum + x
... print(sum / 5)
File "<stdin>", line 3
print(sum / 5)
^
SyntaxError: invalid syntax
使用的python3.9.2，怎么输入出现错误
>>> sum = 0.0
>>> for x in L:
... sum = sum + x
... print(sum / 5)
File "<stdin>", line 3
print(sum / 5)
^
SyntaxError: invalid syntax
使用的python3.9.2，怎么输入出现错误
2021-02-25
L = [75, 92, 59, 68, 99]
a=0
for ch in L:
a+=ch
print('总数为:',end="")
print(a/(len(L)))
a=0
for ch in L:
a+=ch
print('总数为:',end="")
print(a/(len(L)))
2021-02-24
age =2
if age>=18:
print("adult")
elif 6<=age<18:
print("teenager")
elif 3<=age<6:
print("kid")
else:
print("baby")
if age>=18:
print("adult")
elif 6<=age<18:
print("teenager")
elif 3<=age<6:
print("kid")
else:
print("baby")
2021-02-24