# Enter a code
# encoding=utf-8
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
num = 2
while num > 0:
num -= 1
name = 'Alice'
if name in d:
d.pop(name)
print(d)
else:
print('{}没有在d里面'.format(name))
# encoding=utf-8
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49
}
num = 2
while num > 0:
num -= 1
name = 'Alice'
if name in d:
d.pop(name)
print(d)
else:
print('{}没有在d里面'.format(name))
2021-03-14
# Enter a code
# coding:utf-8
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49,
'Gaven': 86
}
keys = d.keys()
for key in keys:
print('名字：{}；\t成绩：{}'.format(key, d.get(key)))
# coding:utf-8
d = {
'Alice': 45,
'Bob': 60,
'Candy': 75,
'David': 86,
'Ellena': 49,
'Gaven': 86
}
keys = d.keys()
for key in keys:
print('名字：{}；\t成绩：{}'.format(key, d.get(key)))
2021-03-12
L = [75, 92, 59, 68, 99]
sum = 0.0
for x in L:
sum+=x
sum = sum/len(L)
print(sum)
sum = 0.0
for x in L:
sum+=x
sum = sum/len(L)
print(sum)
2021-03-11
L = ['Alice', 66, 'Bob', True, 'False', 100]
num = 1
for i in L:
if num % 2 ==0:
print(i)
num += 1
else:
num += 1
continue
num = 1
for i in L:
if num % 2 ==0:
print(i)
num += 1
else:
num += 1
continue
2021-03-11
s1 = 'ABC'
s2 = "123"
s3 = 'xyz'
for ch1 in s1:
for ch2 in s2:
for ch3 in s3:
print(ch1+ch2+ch3)
s2 = "123"
s3 = 'xyz'
for ch1 in s1:
for ch2 in s2:
for ch3 in s3:
print(ch1+ch2+ch3)
2021-03-11
number = 0
sum = 0
while number <=1000:
if number % 2 != 0:
number += 1
continue
else:
sum += number
print(number,sum)
number += 1
sum = 0
while number <=1000:
if number % 2 != 0:
number += 1
continue
else:
sum += number
print(number,sum)
number += 1
2021-03-11