index指令是統(tǒng)計(jì)元素的下標(biāo),count是統(tǒng)計(jì)元素出現(xiàn)的次數(shù)
2021-08-12
names = ['Alice', 'Bob', 'Candy', 'David', 'Ellena']
names.insert(5,'Gen')
names.insert(6,'Phoebe')
names.append('Zero')
print(names)
names.insert(5,'Gen')
names.insert(6,'Phoebe')
names.append('Zero')
print(names)
2021-08-11
age = 1000000000000000000000000000000000
if age < 3:
print('baby')
elif age <= 6:
print('kid')
elif age <= 18:
print('adult')
elif age <= 200:
print('human')
else:
print('ghost')
if age < 3:
print('baby')
elif age <= 6:
print('kid')
elif age <= 18:
print('adult')
elif age <= 200:
print('human')
else:
print('ghost')
2021-08-11
age = 1000000000000000000000000
if age < 18:
print('teenager')
else:
print('adult')
if age < 18:
print('teenager')
else:
print('adult')
2021-08-11
L=[1,2,3,4,5]
def square_of_sum(L):
L2=[]
temp = 0
for num in L:
temp = num*num
L2.append(temp)
return L2
print(square_of_sum(L))
def square_of_sum(L):
L2=[]
temp = 0
for num in L:
temp = num*num
L2.append(temp)
return L2
print(square_of_sum(L))
2021-08-09
num = 0
L = ['Alice', 66, 'Bob', True, 'False', 100]
for item in L:
num = num + 1
if num % 2 != 0:
continue
print(item)
這里不該是 if num %2==1:
continue
嗎
L = ['Alice', 66, 'Bob', True, 'False', 100]
for item in L:
num = num + 1
if num % 2 != 0:
continue
print(item)
這里不該是 if num %2==1:
continue
嗎
2021-08-05
num=0
sum=0
while num<=3:
num=num+1
if num%2==1:
continue
sum=sum+num
print(sum)
0~3以?xún)?nèi)的偶數(shù)和 怎么輸出是6???
sum=0
while num<=3:
num=num+1
if num%2==1:
continue
sum=sum+num
print(sum)
0~3以?xún)?nèi)的偶數(shù)和 怎么輸出是6???
2021-08-03
num = 0
sum = 0
while num <= 1000:
num = num + 1
if num % 2==0:
continue
sum = sum + num
print(sum)
這樣為啥不對(duì)。
sum = 0
while num <= 1000:
num = num + 1
if num % 2==0:
continue
sum = sum + num
print(sum)
這樣為啥不對(duì)。
2021-08-03
num=0
sum=0
while num<=1000:
num=num+1
if num % 2 == 1:
continue
sum=sum+num
print(sum)
num = 0
sum = 0
while num < 1000:
num = num + 2
sum = sum + num
print(sum)
結(jié)果一樣,何道理
sum=0
while num<=1000:
num=num+1
if num % 2 == 1:
continue
sum=sum+num
print(sum)
num = 0
sum = 0
while num < 1000:
num = num + 2
sum = sum + num
print(sum)
結(jié)果一樣,何道理
2021-08-03
a=0
b=0
while a<=1000:
if a%2==0:
b=a+b
a+=1
continue
a+=1
print(b)
b=0
while a<=1000:
if a%2==0:
b=a+b
a+=1
continue
a+=1
print(b)
2021-08-02
a=0
b=0
while a<=1000:
if a%2==0:
b=a+b
a+=1
continue
a+=1
print(b)
b=0
while a<=1000:
if a%2==0:
b=a+b
a+=1
continue
a+=1
print(b)
2021-08-02