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s = set(['Alice', 'Bob', 'Candy', 'David', 'Ellena'])
print(s) # {'Ellena', 'Candy', 'David', 'Bob', 'Alice'}
print(set([1,3,6,8,3,5,9,6])) #{1, 3, 5, 6, 8, 9}查看全部 -
d = {'Alice': [50, 61, 66], 'Bob': [80, 61, 66], 'Candy': [88, 75, 90]}
print(len(d))查看全部 -
d = {'Alice': [50, 61, 66], 'Bob': [80, 61, 66], 'Candy': [88, 75, 90]}
for key in d:
value = d[key]
i = 0
while i < len(d[key]):
print(key,value[i])
i+=1
for key,value in d.items():
i = 0
while i < len(value):
print(key,value[i])
i+=1查看全部 -
4-4 Python之for循环这节课不懂
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num = 0
sum = 0
while num <=1000:
num = num +1
if num % 2 ==1:
continue
sum = sum + num
print(sum)
答案：250500
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num = 2
sum = 0
while True:
if num>1000:
break
sum =sum+num
num=num+2
print(sum)
答案：250500
num=0
sum=0
while True:
if num%2==0:
if num>1000:
break
sum =sum+num
num=num+1
print(sum)
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num =1
sum =1
while num<=10:
sum =sum*num
num=num+1
print(sum)
答案：3628800
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L = [75,92,59,68,99]
sum=0
for x in L:sum=sum+x
print(sum/5)
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age = 19
if age >=18: print('adult')
elif age>=6: print('teenager')
elif age>=3: print('kid')
else: print('baby')
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age=19
if age>=18:
print('adult')
elif 6<=age<18:
print('teenager')
elif 3<=age<6:
print('kid')
else:
print('baby')
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age = 18
if age>18:print('adult')
else:print('teenager')
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age = 19
if age > 18:print('audit',age)
查看全部 -
练习题目实现代码
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请综合使用while True和break，计算0~1000以内，所有偶数的和。
num = 0
sum = 0
while True:
if num > 1000:
break
if num % 2 == 0:
sum = sum + num
num = num + 1
print(sum)查看全部 -
age = input('请输入你的年龄:')
if age >= 18:
print('adult!')
elif age>=6:
print('teenager')
elif age>=3:
print('kid')
else:
age < 3
print('baby')查看全部
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